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This Inlines command allows you to see which mainframe serial number is attached to each director port.This command will only show the mainframe paths that have been logically varied online by thecustomer.
The GIDN (Group ID number) is a unique number that Symmetrix assigns to a mainframe (or LPAR),when it brings its first path online to Symmetrix. This two-byte number is easier for Symmetrixmicrocode to use than the 11-byte Group ID, when implementing the Dynamic Path Reconnect (DPR)feature.
The Mainframe Hosts sends the Group ID to Symmetrix whenever it varies a path online to a device.This 11-byte number allows Symmetrix to distinguish a path that belongs to one hosts (or LPAR) from apath that belongs to another host (or LPAR). Symmetrix keeps a table that relates each GIDN with itscorresponding Group ID.
Chapter 23 – Screens 5 of 80
23.3 A1,BB command (EA only)
RCA- 5b: DISK SUBSYSTEM > A1,BB
UTILITY A1 -- Display CONTROLLER info : TIME: JUN/29/98 14:15:50---------------------------------------
TOTAL NUMBER OF CPU`S / LPAR`S: 2
DIR LP/IF GIDN GROUP ID---------------------------------------------- CPU: S/N TYPE TIMER/ID
5b 01 3401 0000 030380 9021 B0A1AB61 5b 02 3401 0000 030380 9021 B0A1AB61 NO. OF GROUP PATHS: 2
This command is a variation of the A1,B command and groups the paths by mainframe Group ID. It alsoshows the number of paths online on each mainframe system.
REA- 5a: DISK SUBSYSTEM-> A1,BB (5264 code)
UTILITY A1 -- Display CONTROLLER info : TIME: MAR/12/99 09:04:43---------------------------------------
TOTAL NUMBER OF CPU`S / LPAR`S: 4
DIR LP/IF GIDN GROUP ID---------------------------------------------- CPU: S/N TYPE TIMER/ID
12b 01 3F01 0000 010137 9021 B1E8BC5F12b 21 2001 0000 019152 9672 B1EDE606Same information as A1,BB, but this shows paths by EA.
Chapter 23 – Screens 7 of 80
23.4 A1,D command
EA- 3: DISK SUBSYSTEM > A1,D
UTILITY A1 -- Display CONTROLLER info : TIME: MAR/09/99 10:33:35---------------------------------------
DV LOCK RECONNECT RESERVATION BUSY DIR LP GIDN ST DIR LP GIDN ST T# ID DIR LP GIDN ST FL DIR LP GIDN ST ID+#-------------------------------------------------------------------------------- 3B 6 01 1201 80 6 01 1201 80 1 DD
Shows device lock status. Also shows which other paths and EA’s that are waiting to lock the device.
This Inlines command shows some/all of the devices and paths that are currently in a LOCK,RECONNECT, RESERVATION, or BUSY state. We look for devices with stuck locks and reserves onthis screen.
Normally a device that appears on this screen will not be on the screen again the next time the commandis issued. If a customer calls and says his host crashed, and left some devices in a reserved state, youwould be able to verify that using this command. Follow the procedures outlined in Primus, if you think areserve or lock needs to be removed. This usually involves getting Tech Support involved in the call.
Chapter 23 – Screens 8 of 80
23.5 A1,E command
RCA- 5b: DISK SUBSYSTEM > A1,EUTILITY A1 -- Display CONTROLLER info : TIME:JUN/29/98 14:16:12---------------------------------------
DV DIR : LP : I/F : GROUP : STATE M-MULTI S-SINGLE D-DISBAND R-RESIGN U-SUSPEND G-GROUP `-`-RESET----------------------------------------------------------------------------
00 5b 0 1 3401 M 5b 0 2 3401 M 01 5b 0 1 3401 M 5b 0 2 3401 M 02 5b 0 1 3401 M 5b 0 2 3401 M 03 5b 0 1 3401 M 5b 0 2 3401 M 04 5b 0 1 3401 M 5b 0 2 3401 M 05 5b 0 1 3401 M 5b 0 2 3401 M 06 5b 0 1 3401 M 5b 0 2 3401 M 07 5b 0 1 3401 M 5b 0 2 3401 M
This command shows any path that has ever been brought online by a mainframe to each device inSymmetrix.
M = Multi-Path mode (DPR is enabled by the mainframe, and the path is logically online for the device. I/Ooperations started on one path may complete on another path within the group.)
S = Single-Path mode (DPR is disabled by the mainframe. Grouping exist only for device reservation, notreconnection)
D = Disbanded (The mainframe has disbanded a previously set path group for the device. Each path in theoriginal group for this device is placed in an ungrouped state.)
R = Resigned (The mainframe has logically varied the path offline for the device. The issuing channel isremoved from the channel path group for the device and becomes a stand-alone channel.)
U = Suspended (The path has been suspended for the device)
G = Group (A valid path group ID exist for this device on this channel, and the device is shared by a group)
- = Reset (No set Path Group ID command has been accepted on this channel since the last system reset orsubsystem power-on reset.
Keep hitting enter to ensure alldevices have all paths ready
Chapter 23 – Screens 9 of 80
23.6 A1,EE,dv,’GRUP command
DA- 2a : DISK SUBSYSTEM >
UTILITY A1 -- Display CONTROLLER info : TIME: MAR/09/99 11:15:08---------------------------------------
UN REBUILD TRACKS COUNTSPARITY DV# 01 DV# 7B DV# FC--------------------------------- 0 0 0 0DA- 2a : DISK SUBSYSTEM >
*** NOTE: In 5265 there is no longer tracks on parity. All tracks that would normally show there areXOR’ed in cache and can be XOR’ed back if the customer does a read or write. The raid calculations arefaster thus being able to do away with tracks on parity.
RAID 0 Data is striped across multiple devices. Provides lowest security but goodperformance
RAID 1 Provides a mirror image on another physical device and provides the bestdata security but cost is doubled
In Symmetrix this also provides an increase in performance because readsare split between the mirrors
RAID 2 Data is striped across multiple devices and protected by Hamming codes,requires additional dedicated devices to store the Hamming codes.
RAID 3 Data is striped across multiple devices and is protected by a dedicated paritydevice, parity is software generated
RAID 4 Data is striped by block across multiple devices and is protected by adedicated parity device, parity is hardware generated.
RAID 5 Data is striped across multiple devices, parity is generated and storedinterleaved with data on the data devices, parity is generated at the controllerlevel and there is an impact on performance
RAID S EMC propietary, this is similar to RAID 5 but parity generation and checking
When a device in the raid groupgoes not ready, you will see invalidtracks that are owed to that devicehere.
All logicals in the group aredisplayed here and show the totaltrack counts.
When a data drive goes not ready,the parity device will assume thatdata device position. All new andupdated tracks are shown here asvalid parity tracks.
Tracks that are unable to be rebuiltare shown here.
Chapter 23 – Screens 10 of 80
is performed by hardware at the device level rather than at the controllerlevel, this requires special XOR capable SCSI devices. Although there is aperformance impact this relieves the controller (DA) of the paritygeneration/checking.
Chapter 23 – Screens 11 of 80
23.7 A3, command
DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:28------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 10BACF00 LAST CHK SLOT #: 6144NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:29------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 1252CF00 LAST CHK SLOT #: 12288NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:30------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 13EACF00 LAST CHK SLOT #: 18432NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:32------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 1582CF00 LAST CHK SLOT #: 24576NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:33------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 171ACF00 LAST CHK SLOT #: 30720NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:35------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 18B2CF00 LAST CHK SLOT #: 36864NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:36------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 1A4ACF00 LAST CHK SLOT #: 43008NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:38------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 1D7ACF00 LAST CHK SLOT #: 55296NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:38------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 1F12CF00 LAST CHK SLOT #: 61440NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:40------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 20AACF00 LAST CHK SLOT #: 67584NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:40------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 2242CF00 LAST CHK SLOT #: 73728NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:41------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 23DACF00 LAST CHK SLOT #: 79872NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:42------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 2572CF00 LAST CHK SLOT #: 86016NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >
UTILITY A3 -- Check CACHE pointers : TIME: MAR/10/99 22:57:43------------------------------------CHECKED SLOTS / DISABLED / ERRORS (DEC): 6144 / 0 / 0POINTER TO LAST CHECKED SLOT: 270ACF00 LAST CHK SLOT #: 92160NO ERROR FOUND - HIT CR TO CONTINUE !DA- 2a : DISK SUBSYSTEM >A3 utility checks integrity of LRU queue, if errors are present then you must contact engineering. Thiscommand should become a regular part of your routine for checking out a box, should be utilizedbefore taking a box off-line along with A4, A7 and A7,EC.
Chapter 23 – Screens 13 of 80
23.8 A4, command
DA- 2a : DISK SUBSYSTEM >
UTILITY A4 -- Check for loose CACHE slots : TIME: MAR/03/99 05:06:44-------------------------------------------PH-ADD CCCC HH DV FWD-PTR BWD-PTR FLAGS[Tape,Perma-cache,Write-pending,test,Scratch,Raid,sideFile]
SF side file slotRAID Raid slotWP actual write pendingSSD Perma cache slotCC Concurrent copy
Global memoryaddress of WP
CCCC HH DDD
When WP bothfwd/bwd pointersmust be equal
Chapter 23 – Screens 14 of 80
23.9 A7,AAAA command
DA-15a : DISK SUBSYSTEM-> A7,AAAA A7, utility help screen
UTILITY A7 -- Show system devices Attrib/WP/Invalid : TIME: MAR/09/9910:52:11-----------------------------------------------------A7,AAAA GET THIS LISTA7,'LGND' Show a7 legendA7, Show devices WP / invalid info with device attributes.A7,C Same as above but a compete devices list.A7,'L' Same as 0 but local mirrors only.A7,'WP' Same as above but a only devices with wp/fp.A7,DC Show dual copy status for each device.A7,'SYNC' Show A7 bottom lines only. (WP & invalid counts only).
A7,D Show the location of each drive (DA only).
A7,FE Show system physical drives information (DA only).
A7,AD SAME AS 'A7,0' + DRIVES LOCATION INSTEAD OF INVALID COUNTS (DA only)A7,EC Show invalid tracks for each device.A7,ED Show invalid tracks for each non migration device and M1 invalids + migration tracks for migration device.A7,1EC Show total invalid and migration tracks summary onlyA7,1ED --"--
A7,FC ---Show PERMA CACHE extents and counts.A7,ACFC Show PERMA CACHE SLOTS counts.
A7,'EMUL' Show devices EMULATION and size.
A7,'LL' Show devices labels. (DA only).A7,'SSST' -- Show subsystems status (DA only).A7,'DVST' -- Show devices status (DA only).A7,'SSID' -- Show devices SYSTEM-IDS (DA only).A7,'IFID' -- Show channels INTERFACE-ID (DA only).A7,'DDC' -- Show devices read & write counters (DA only).A7,'SUMM' -- Show system level performance statistics (DA only).A7,'GRUP'-- Show RAID-GROUPS devices/dirs/I/F (symm 4 only).A7,'SDBF'-- Show sdbf sessions and tags (HA only).A7,'SMMF'-- Show File SMMF sessionsA7,'NVDB',TABLE#['ALL'] --Show nvd bid table info.
A7,FD -- Show all device-table impl definitions. Options (P4): 'FLGS' - Show devices flags details. 'RDF1' - Show Rdf flags details. 'RDF2' - Show Rdf flags details. 'FALL' - Show All the above flags details. 'PLCY' - Show mirror service policy flag details. 'DMSP' - Show DMSP and IMPL flag details.A7,'DMWP' - Show devices DYNAMIC MAX write pending count (DA only).
A7,'R2WP' - Show devices R2 write pending count for adaptive copy wp.A7,'ACGS' - Show the adaptive copy skew for all devices from global table
Chapter 23 – Screens 15 of 80
A7,'ACLS' - Show the adaptive copy skew for all devices from local tableA7,'MSR2' - Show the other side's 'other side' invalid counters Shows interesting dv's only, unless P3=C On RA only: If P4='NVDT'-then show it from the RA NVD.
A7,B - Show all SA assoicated with their devices.A7,BA,SA# - Show all Devices assoicated with the SA Specified.
A7,'DMSP' - Show interesting devs in dynamic mirror service policy tableA7,'DMSP','FORC' - Show all devs in dynamic mirror service policy tableA7,'DMSP','PHYS' - Show all devs in DMSP table, sort by physicalA7,'DMSP','DIR#' - Show all devs in DMSP table, sort by dir num
x = nr device m= Local device u = customer made the device not ready using host component f = rdf target device (5x65) P= Raid Parity F =rdf source device(5x65) X= Raid Data B = device had a bcv invoked against it H= Hot Spare R= RDF device (5x64 and below)Under device attributes:c= kd 7 = 3370f =fba 8= 3380adp c wp = adaptive copy write pending 9= 3390adp c di = adaptive copy disk S= Split CE/DE modenr bcv = bcv device is invoked and not ready to the hostb = bcv device M= Data Migration
IF x then the device iswrite disabled.
If x then the device is ina not ready state
Chapter 23 – Screens 17 of 80
23.11 A7,BA,<sa#> command
UTILITY A7 -- Show system devices Attrib/WP/Invalid : TIME: MAR/10/99 22:47:31-----------------------------------------------------DEVICE SA PORTS------ -------------------------------------------------SA 12a: DV 3A-0A|00 DV 3B-0A|10 DV 3C-0A|20 DV 3D-0A|30 DV 3E-0A|40 DV 3F-0A|50 DV 40-0A|60 DV 41-0A|80 DV 42-0A|90 DV 5E-0A|E0 DV 5F-0A|F0 DV 62-0A|A0 DV 63-0A|B0 DV 64-0A|C0 DV1230A|01 DV124-0A|11 DV125-0A|21
Displays the device’s and associated LUN’s that are on a specific SA.
Displays Adaptive Copy global states. Denotes mode (write pending/disk ) and skew (tracks that areallowed to be invalid on R2 device), this is settable by logical device per customer request.
UTILITY A7 -- Show system devices Attrib/WP/Invalid : TIME: MAR/11/9901:19:55-----------------------------------------------------SSID SSID COUNT CACHE STATUS NVS STATUS-----------------------------------------0010 40 ACTIVE ACTIVE0011 40 ACTIVE ACTIVE0012 40 ACTIVE ACTIVE0013 28 ACTIVE ACTIVE0008 40 ACTIVE ACTIVE0009 40 ACTIVE ACTIVE000A 40 ACTIVE ACTIVE000B 24 ACTIVE ACTIVE
DA- 2a : DISK SUBSYSTEM >
Displays SSID’s, counts and status’s
Chapter 23 – Screens 30 of 80
Chapter 23 – Screens 31 of 80
23.23 A7,'SYNC' command
DA- 2a : DISK SUBSYSTEM >
UTILITY A7 -- Show system devices Attrib/WP/Invalid : TIME: MAR/10/99 22:49:09----------------------------------------------------- NOT RDY WR DIS TYPE DEV WRT FMT | INVALID TRACKS COUNTSDV# M1234 M1234 M1234 ATTR PEND PEND | M1 M2 M3 M4--------------------------------------------------|----------------------------
CA Tasks:0.. = no task 3 DE = device end1 RD = read miss 4 BU = device busy2 SW = system write miss 6 UC = unit check8 DW = device write miss 10 SS = stacked status5 AT = attention (ELL) 13 ER =Error not a
task14 BR = busy retry (Unisys) 9 IE = ID slot error 11FD = counter for DA clock RS = reserve12 DP = psudo disconnet counter15 = wait for read counts send
tasks shown is lower case when under reserve
DA Tasks:
0.. = no task 9 NR = not ready1 RD = read data 10 PF = prefetch3 ID = update disk format 5 EX = external task4 IE = update ID slot format8 AS = special recovery 6 SC = scrubbing7 SR = sequential read 2 tracks (FBA)12 CP = copy task 14 = backup (pf)15 = read counts from disk
RA Tasks:DA CA SDM/RA0 .. = no task 7 = not ready task 8 = wait for read end 15 = channel req from host1 = DA read 9 = wait for sys write space 16 = copy task2 = DA write 10 = pending device end 17 = oem ctrl busy to host3 = read counts from disk 11 = wait slot lock ( polling) 18 = recovery procedures4 = read id table 12 = wait for dev write space 19 = external task for oem5 = DA external task 13 = N/A6 = copy task 14 = wait for read counts end
Scrubbing pointer location
Chapter 23 – Screens 34 of 80
23.25 CC,,4 command
Symm3:
Chapter 23 – Screens 35 of 80
CC,,4 (cont.) Symm4 with 5265:
DA- 2a : DISK SUBSYSTEM > EA- 3a : DISK SUBSYSTEM >CC,,4
UTILITY CC -- Display MONITOR info : TIME: MAR/11/99 01:18:07------------------------------------
PORT/LP STATE CUADD IMG/LNK GIDN TIME-STAMP------------------------------------------------------------------
A 00 VALID 00 0280 2200 FEB/28/99 05:10:34 A 01 VALID 00 0380 2201 FEB/28/99 05:10:34 A 02 VALID 00 0480 2202 FEB/28/99 05:10:34 A 03 VALID 01 0280 2200 FEB/28/99 05:10:34 A 04 VALID 01 0380 2201 FEB/28/99 05:10:34 A 05 VALID 01 0480 2202 FEB/28/99 05:10:35 A 06 VALID 00 0090 2206 FEB/28/99 05:40:33 A 07 VALID 00 0582 2207 FEB/28/99 06:26:06 A 08 VALID 01 0582 2207 FEB/28/99 06:26:06 A 09 VALID 01 0090 2206 FEB/28/99 05:40:33 A 0A VALID 00 0682 220A FEB/28/99 06:26:10 A 0B VALID 01 0682 220A FEB/28/99 06:26:11
2 control units
In 5x64 this is reversed. It’s shown LP/PORT in this family.
The break down of the GIDN is different in symm3 and symm4 and symm4 with 5265. In 5265code, its done in this manor:The first nibble is bit weighted. So :
8 4 2 1 0 0 1 0
The first 2 are default 0. The next or (2) is telling whether the path is grouped or not. 1 is and 0 is not.The last is telling if it’s the B port or not. 0 is not and 1 is. In the above example its telling us its groupedand the A port.
The second nibble is the dir –1. So dir 1 established the path.
The second byte, is the logical path. Keep in mind there is 2 Control units so they will not match the LPfrom the second column.
The state and time stamp of the last physicallink established with the port. The state can beValid or Suspended. When it is suspended,there is no light detected at the rear adaptor.Possibly, it is hung or the port at the IBMdirector is blocked.
The first byte is the LPAR image. The secondbyte is the descriptor of whether its directconnect and if it goes thru a switch. If the lastnibble is 01, its direct connect.All else is a switch.
You can see EMIF since the paths have thesame inbound ports with different LPAR’s.
Chapter 23 – Screens 36 of 80
23.26 D1,xx,54 (SDM)
Chapter 23 – Screens 37 of 80
23.27 D2,tgt# command
DA- 2a: DISK SUBSYSTEM > D2,00
UTILITY D2 -- Display PF DV RECORD of target N : TIME: FEB/24/99 06:25:49-------------------------------------------------
The E7 Inlines command (executed on a CA) shows devices that are accessible through each CA port. It also showswhich devices are not accessible to a particular port. The command also shows how internal Symmetrix devicenumbers are mapped to addresses on the mainframe channel.
Code loaded inEEPROM and CS
Shows how customer unitaddress on channel (A8)translates to Symmetrix internaldevice address (28)
Channel Speed andMode
Devices are not configuredon ports ‘C’ and ‘D’
Chapter 23 – Screens 49 of 80
23.39 E7, command (RA)
RA-13a : DISK SUBSYSTEM->
UTILITY E7 -- Display SYSTEM CONFIGURATION info : TIME: MAR/11/99 00:03:45-------------------------------------------------
START/END/LAST DV 00/ 19/ 41DA- 2a : DISK SUBSYSTEM >
Logical device record address for each logicaldevice on this director. Use register A0 from E2,display to verify the actual failing device.
Physical device record address calculated for eachphysical device on this director. This record will beused when we troubleshoot device failures where thebox is configured with multiple physical devices asone logical device.
Chapter 23 – Screens 52 of 80
23.42 E7,AAAA command
DA-15a : DISK SUBSYSTEM-> E7,AAAA E7, utility help screen
UTILITY E7 -- Display SYSTEM CONFIGURATION info : TIME: MAR/09/99 10:52:02-------------------------------------------------
; P1 ; P2 ; P3 E7 ; DISPLAY CONTROLLER CONFIGURATION E7 ; D0 DISPLAY TARGET MASK OF DRIVES E7 ; CF ; 00 ; CONFIGURATION FLAGS E7 ; CF ; 04 ; PERIODIC TESTS TIME TABLE E7 ; FE ; PHYSICAL DEVICES INFORMATION E7 ; FEA ; mask (P2,P4-P10) PHYSICAL DEVICES INFO BY MASK E7 ; CE ; mask (P2,P4-P10) DISPLAY DRIVES BY THEIR TARGET MASK E7 ; CE ; DISPLAY DRIVES BY UTIL LIST E7 ; CEC ; DISPLAY DRIVES BY TYPE E7 ; 2CEC ; DISPLAY DRIVES BY TYPE + 2NDERY E7 ; AD ; DISPLAY RAID INFORMATION E7 ; BE ; [ECA/ECB/ECC/EC/D0] DISPLAY SCANNED DRIVES E7 ; D ; code : display ; DISPLAY FILE DIRECTORIES E7 ;"PFCN"; DISPLAY DRIVES PF COUNTERS E7 ;"PFTS"; DISPLAY DRIVES PF TASKS E7 ;"PFVT"; DISPLAY DRIVES PF ACTIVE TASKS E7 ;"PFTL"; DISPLAY DRIVES PF ALGO PARMS E7 ;"ALGM"; Page ; DISPLAY ALGORITHM PARMS E7 ;"IOCN"; DISPLAY DRIVES IO COUNTERS E7 ;"CCYL"; DISPLAY DEVICES COPY CYLS E7 ;"SCRB"; DISPLAY DEVICES SCRUB CYLS E7 ;"PHWR"; DISPLAY PH DRIVES WRITE COUNTRES E7 ; DDD ; DISPLAY DRIVES DELAY TIMERS FOR WRITE E7 ;"CFTB"; DISPLAY ONLINE CHANGEABLE CONFIG PARMSDA-15a : DISK SUBSYSTEM-> A7,AAAA
Chapter 23 – Screens 53 of 80
23.43 E7,C command (SDM)
Chapter 23 – Screens 54 of 80
23.44 E7,CF command (DA)
UTILITY E7 -- Display SYSTEM CONFIGURATION info : TIME: MAR/09/99 09:46:19-------------------------------------------------
POWER ON: JAN/09/99 20:10:02 OPERATING HOURS: 14744:30:24FULL RESET (FF): JAN/09/99 19:59:43 RESET PASSWORD: RS22 ONLINE RESET (FD): MAR/08/99 18:21:21 TIME TO BACKUP: 0180 secERRORS CLEARED: JUN/07/98 09:51:51 SERIAL NUMBER: 000182502840
RS232 : 1307CC78, BAUD : 38400
RAID SYSTEM: No MIGRATION SYSTEM: NoRDF SYSTEM: Yes RDF T3 SYSTEM: NoRDP SYSTEM: No MPLF SYSTEM: NoMACC ENABLED: No ELLF SYSTEM: NoEOS SYSTEM: No MIXED CKD/FBA SYSTEM: NoENABLE SDBF: No ENABLE DMSP: YesENABLE WORM: No ENABLE DOUBLE WRITE ID: YesDISABLE DRIVE SKIP MASKS:No MAII DIR: 014ENV DATA BOARD: EN_I TRACE MASK: FFFFENV DATA BOARD MODE: 02 INIT STAMP: 00000000MEM LAST ADDRESS: FFFEFFFF DYNAMIC FALSE DISC.: YesENABLE 9370: No DYNAMIC PATH RECONNECT: NoENABLE DISASTER CTRL: No ENABLE RED EPO BACKUP: NoCONCURRENT COPY: No DISABLE PC LIFE TEST: NoENABLE LOST WRITES: No SSD (PERMA CACHE): NoDA PREFETCH: Yes DISABLE SCSI MUX: NoDIAG MODE: Online DIAG FLAGS: 000000MIRROR HOT SPARE: No ENABLE MULTI CORRECT: NoSPARE ATTRIBUTE: 25 SEQUENTIAL WRITE: YesSEQUENTIAL READ: Yes REPORT SYNC-SIM ONCE: NoCHECKING FLAGS: 00000000 FATAL ERR FLAGS: 000215E1CACHE MODE: LRU ERROR 3C TIMEOUT: 0025 secFOUR SW: No FORCE CTQ ENABLED: NoFBA CONCURRENT COPY: No FBA PART SEC DESTAGE: NoFBA ENVIRON REPORTS: No FBA PROPAGATE RESET: NoRDF MAX INVALID SKEW: 65535 MULTI RDF WRITE: YesLINK DOMINO MODE: No NO AUTO LINKS RECOVERY: NoCONTROLLER TYPE: 3990-3 DUAL COPY: NoFAST WRITE: Yes FAST WRITE CEILING: 32000WRITE PEND CEILING: 80% SHUTOFF TIMER: 0150 sec
RECORD CACHE: No DISABLE MEMORY MODE: 00DISABLE MEM MAP CKSUM: 00 LABEL SOURCE: TableMAX SCSI SPEED: 00 MIX BULL SYSTEM: NoDISABLE STATS OVERFLOW: No PARALLEL CHANNEL MODE: Non-Sync16 BIT ID MODE: Yes MPLF HASH CODE: 00000000
Shows last FF/FD and power on.
Shows FF password:RSFF-shows FF doneRSFD-shows FD donePWRS-shows power on resetMNRS-shows manual resetSPRS-shows special reset
Perma-cache option and WPceiling percentage
Chapter 23 – Screens 55 of 80
FBA ENVIRON SENSE KEY: 00 FAST BACKPLANE: YesCHECK DIRECTOR CHECKSUM: Yes ELITE 9 SCRUBBING: Enabled
SYSTEM (ID/COUNT): 00E0/003A 00E1/0026
CACHE CONTROL: [A0808000] EDC NAD ESB DPI FOC...EBC CABC CUCB.....EIC NAI FICMASTER FLAG: [000000B4] Mstr Grp Maii Bus-Arb Cache Clock Second-Arb HAmasterIMPL FLAGS: [0000A000] BRA DUN BR.ENR MNV EPR TTT GSN ABR ARC EXR....
DA-14a: DISK SUBSYSTEM->
RDF SYSTEM- Shows this if this is an RDF environmentRDF T3 – IF yes then the data is transferred over T3 lines , if NO then its local RDF (campus)
MPLF and ELLF- If yes then this is a TPF environment. Only passive commands allowed!!
EXTENDED LIMITED LOCK FACILITY (ELLF) Symmetrix supports IBM's Extended LimitedLock Facility for use in the ACP and TPF operating system environments. The ELLF featurecontrols access by multiple hosts to a shared resource (volume, file or record) via a logical lock.These logical locks limit access to a shared resource to one user at a time. Host systems controlthe locks using a special lock facility channel commands. Symmetrix maintains the names andstatus of logical locks currently in use, and responds to requests to obtain or release a lock.
MULTI-PATH LOCK FACIILITY (MPLF) Symmetrix also supports IBM's Multi-Path Lock Facility for use in theTPF operating system environment with the Concurrency filter lock facility installed. Like ELLF, the MPLFfeature controls access by multiple hosts to a shared resource (volume, file or record) via a logical lock. Theselogical locks limit access of a shared resource to one user at a time
MAII Director- Shows the default or local director that is know in global memory. See primus solution on how to changethis.
Link Domino- If yes then the customer has this set so when 1 device goes not ready all devices and links go not ready toboth hosts.
Fatal Error Flags- This flag prevents directors from going into IMPL monitor mode for non-severe errors. See TIM # 89for
proper settings and how to change.
Chapter 23 – Screens 56 of 80
23.45 E7,CF command (CA)
Chapter 23 – Screens 57 of 80
23.46 E7,D,,1 or E7,D command (DA)
DA- 2a: DISK SUBSYSTEM > E7,D,,1
UTILITY E7 -- Display SYSTEM CONFIGURATION info : TIME: FEB/24/99 06:25:01-------------------------------------------------
Logical devicenumber, which is the11th split and anRDF device.
Chapter 23 – Screens 63 of 80
23.51 E7,'PHWR' command
DA- 2a : DISK SUBSYSTEM >
UTILITY E7 -- Display SYSTEM CONFIGURATION info : TIME: MAR/10/9922:55:24-------------------------------------------------PHYSICAL DRIVES WRITE INFORMATION
2000 --> B port online 4000 --> A port online 6000 --> A and B offline
Chapter 23 – Screens 66 of 80
23.54 8D,dv,,’ITBL command
DA- 2a : DISK SUBSYSTEM >
UTILITY 8D -- Send DATA from MEMORY to RS-232 : TIME: MAR/09/99 11:18:10-----------------------------------------------DEVICE: 01 GLOBAL MEMORY FIELDS:-----------------------------------
ID TABLE POINTER : 01057F00DEVICE TABLE SIZE: 002BF800DEVICE WP BYTES : 000000DEVICE STATUS : 52 RREADY STATE : CCDV MIRROR : C0DV MESSAGE FLAGS : 00/00000000
DUAL COPY FLAGS : 00DUAL COPY STATE : 00DUAL COPY DV NO : FFFF
CA ACTIVE CYL : 0000CA UPDATE TIME : 0BFB9D04 MAR/09/99 10:05:54
DONE.DA- 2a : DISK SUBSYSTEM >
Used for determination of BCV device status, and other device number.
Device number
If the device was invoked against astandard device at one time, the devicewould be listed here.If the device was a standard device, thebcv that was established to it would belisted here.FFFF means the device wasnever established.
Device flag:52 standard device (remberan uninvoked bcv device isnow considered a standarddevice)42 is an invoked bcv device
Time stamp of updatde
Chapter 23 – Screens 67 of 80
23.55 8F,AAAA command
RSA- 1b : DISK SUBSYSTEM-> 8F,AAAA 8F Utility help screen
[$] 8F ,'FNEG','xxxx',<TID.B><INIT.B><PRT#.W> FORCE NEGOTIATION AT THENEXT SELECTION. 'SYNC',ttii00pp SDTR ON THE INDICATEDTID/INIT/PORT. 'WIDE',ttii00pp WDTR ON THE INDICATEDTID/INIT/PORT. 'BOTH',ttii00pp BOTH WIDE & SYNC.
[$] 8F ,'ENBL','xxxx',<PRT#> ENABLE A FEATURE:[$] 8F ,'DSBL','xxxx',<PRT#> DISABLE A FEATURE: 'SYNC',pp SYNC TRANSFER (IN CONFIG FLAGS). 'WIDE',pp WIDE TRANSFER (IN CONFIG FLAGS). 'BOTH',pp BOTH SYNC & WIDE (IN CONFIG FLAGS). 'TAGD',pp TAG/QUEUEING (IN CONFIG FLAGS). 'LINK',pp LINKED COMMANDS (IN CONFIG FLAGS). 'NEGO',pp ENABLE/DISABLE NEGO ON RESET. 'SOFT',pp ENABLE/DISABLE SOFT RESET SUPPORT. 'ENVT',pp ENABLE/DISABLE ENV REPORT ON PORT. 'CYLN',pp ENABLE/DISABLE CYL IN SN. 'PBAY',pp ENABLE/DISABLE PBAY SUPPORT. 'H300',pp ENABLE/DISABLE BUSY INSTED ABORT. 'RORD',pp ENABLE/DISABLE CMD REORDERING. 'CMSN',pp ENABLE/DISABLE COMMON SN. 'QERR',pp ENABLE/DISABLE QERR IN MODE. 'ULTR',pp ENABLE/DISABLE ULTRA TRANSFERS. 'FDIS',pp ENABLE/DISABLE FALSE DISCONNECT. 'SMNS',pp ENABLE/DISABLE SIEMENS. 'MINQ',pp ENABLE/DISABLE MINI QUEUE. 'NFNG',pp ENABLE/DISABLE SYMM NEGOTIATION. 'PORT',pp ENABLE/DISABLE OPERATION OF PORT.
[$] 8F ,'PORT','ONLN',<PRT#> BRING A PORT ONLINE.
Chapter 23 – Screens 68 of 80
'OFFL',<PRT#> BRING A PORT OFFLINE. 'REST',<PRT#> SIMULATE A SCSI BUS RESET ON A PORT. 'RESV',<PRT#> CLR RESERVATIONS ON A PORT. 'ATTN',<PRT#> SET UNIT ATTN ON A PORT. 'WROF',<PRT#> SET PORT WRITE DISABLE. 'WRON',<PRT#> SET PORT WRITE ENABLE.
[$] 8F ,'WRIT','SAME',57 ENABLE QUICK WRITE SAME - AS/400. ,'SAME',XX XX<>57 - DISABLE QUICK WRITE SAME -AS/400. ,'INFO' PRESENT CURRENT SATE OF QUICK WRITE SAME. NOTE: THIS UTILITY IS ON A DIRECTOR LEVEL !!.
| PERIOD/WIDTH(W OR N)/OFFSET FOR TARGET ID, PORT : 00I | 0 1 2 3 4 5 6 7 8 9 A B C D E F--+--------------------------------------------------------------07 5n0 5n0 5n0 5n0 5n0 5n0 5n0 5n0 5n0 5n0 4w8 5n0 5n0 5n0 5n0 5n0
| PERIOD/WIDTH(W OR N)/OFFSET FOR TARGET ID, PORT : 01I | 0 1 2 3 4 5 6 7 8 9 A B C D E F--+--------------------------------------------------------------DONE.
In the above diagram the devices on SA1b, port a target A are negotiating fast and wide. All the othertargets are negotiating narrow or not at all.Port 01 or B on SA1b has no negotiation and may not be configured.
This line shows how the symm is negotiating with the host. This is always hostdependant and the host will decide how it negotiates with the symm.
4w8 is broken down as follows:2 = ultra scsi n= narrow 0=asynchrinous4= fast w= wide
8=synchrinous5=slow
00=a01=b02=c03=d
Initiator 07
Target #
Chapter 23 – Screens 70 of 80
Chapter 23 – Screens 71 of 80
23.57 8D,,,'SPST' command
23.58 8D,,,'SPRQ' command
Chapter 23 – Screens 72 of 80
23.59 RDF Utility Commands
A7,’RDFF commandDisplays device info on both boxes and also shows their flag and status.
DA-14a: DISK SUBSYSTEM->
UTILITY A7 -- Show system devices Attrib/WP/Invalid : TIME: MAR/09/99 09:39:06-----------------------------------------------------
OUR SIDE | OTHER SIDE---------------------------------------+---------------------------------------SYM RDY JR DRP ADP F1/F2 RDY |SYM RDY JR DRP ADP F1/F2 RDY---------------------------------------+--------------------------------------- 00 R1 ../.. J0 ./. .. 80/00 XX XX | 00 R2 ../.. J0 ./I .. 42/00 .. .. 01 R1 ../.. J0 ./. .. 80/00 XX XX | 01 R2 ../.. J0 ./I .. 42/00 .. .. 02 R1 ../.. J0 ./. .. 80/00 XX XX | 02 R2 ../.. J0 ./I .. 42/00 .. .. 03 R1 ../.. J0 ./. .. 80/00 XX XX | 03 R2 ../.. J0 ./I .. 42/00 .. .. 04 R1 ../.. J0 ./. .. 80/00 XX XX | 04 R2 ../.. J0 ./I .. 42/00 .. .. 05 R1 ../.. J0 ./. .. 80/00 XX XX | 05 R2 ../.. J0 ./I .. 42/00 .. .. 06 R1 ../.. J0 ./. .. 80/00 XX XX | 06 R2 ../.. J0 ./I .. 42/00 .. .. 07 R1 ../.. J0 ./. .. 80/00 XX XX | 07 R2 ../.. J0 ./I .. 42/00 .. .. 08 R1 ../.. J0 ./. .. 80/00 XX XX | 08 R2 ../.. J0 ./I .. 42/00 .. .. 09 R1 ../.. J0 ./. .. 80/00 XX XX | 09 R2 ../.. J0 ./I .. 42/00 .. .. 0A R1 ../.. J0 ./. .. 80/00 XX XX | 0A R2 ../.. J0 ./I .. 42/00 .. .. 0B R1 ../.. J0 ./. .. 80/00 XX XX | 0B R2 ../.. J0 ./I .. 42/00 .. .. 0C R1 ../.. J0 ./. .. 80/00 XX XX | 0C R2 ../.. J0 ./I .. 42/00 .. .. 0D R1 ../.. J0 ./. .. 80/00 XX XX | 0D R2 ../.. J0 ./I .. 42/00 .. .. 0E R1 ../.. J0 ./. .. 80/00 XX XX | 0E R2 ../.. J0 ./I .. 42/00 .. .. 0F R1 ../.. J0 ./. .. 80/00 XX XX | 0F R2 ../.. J0 ./I .. 42/00 .. ..DA-14a: DISK SUBSYSTEM->
Journal 0 Journal 0Device 0F on source side Device 0F on Target sideFlag of 80 which shows R1 Flag of 42 which shows R2, nr if invalid tracks
X denotes not ready on the link. shows ready on the link.
Chapter 23 – Screens 73 of 80
Utility to disable all environmental tests on all directors in aremote box.
DA- 2: 3390 DISK SUBSYSTEM > DF,0,8C,,D,’ENVT’
UTILITY DF -- RDF Remote Command : TIME: MAY/14/96 09:50:46-----------------------------------------------Waiting for response ...DA- 2: 3390 DISK SUBSYSTEM >--------------D- 1 @"8C,,D,454E5654"
UTILITY 8C -- Load DATA from RS-232 to MEMORY : TIME: MAY/14/96 09:49:11-----------------------------------------------
DONE.DA- 1: 3390 DISK SUBSYSTEM >-------END-------
Chapter 23 – Screens 74 of 80
Utility to enable all environmental tests on all directors in aremote box.
DA- 2: 3390 DISK SUBSYSTEM > DF,0,8C,,E,’ENVT’
UTILITY DF -- RDF Remote Command : TIME: MAY/14/96 09:51:08-----------------------------------------------Waiting for response ...DA- 2: 3390 DISK SUBSYSTEM >--------------D- 1 @"8C,,E,454E5654"
UTILITY 8C -- Load DATA from RS-232 to MEMORY : TIME: MAY/14/96 09:49:32-----------------------------------------------
DONE.
Chapter 23 – Screens 75 of 80
Local/Remote device examples
Global view of active devices in Local and Remote Symmetrix.
HOST SID PORT NAME (WWN) NODE NAME RCV BUF SIZE CREDIT-------------------------------------------------------------------------000001 300000E069001356 100000E069001356 2048 EE 4DONE.SAF- 5a : DISK SUBSYSTEM->
Look for online :loop and also the World Wide Name
Other possibilities are:• Awaiting authentication• Link Down
Chapter 23 – Screens 80 of 80
FC,XCVR,CC
UTILITY FC -- Fiber-Channel utility : TIME: MAR/12/99 03:00:23-------------------------------------
PASSDONE.SAF- 5a : DISK SUBSYSTEM->
FC,XCVR,’INFO
UTILITY FC -- Fiber-Channel utility : TIME: MAR/12/99 03:00:26-------------------------------------