Mod 10 Ibm System Storage Software v1 Wls.2

© 2008 IBM Corporation2
Total Storage !roducti(ity Center) Infrastructure Management
Ti(oli Storage Management) *rchi(al+ Sa(e,-estore+ Space Management
Agenda
Information Availability
. Consolidate infrastructure"
. SVC improves application
business continuity solution.
Static "#in$" Bet%een Server and Storage!
/ut of
ree capacity
010101010101010101 010010101101001000
Copy?
In-efficient +tiliation of Storage Capacity!
Migration and conolidation of Data IS Dir)ptive and &ime Con)ming!
Need'
Simplification
%is& $irtuali'ation is " " "
Technology that ma&es one set of resources loo& and feel li&e another set of resources"
! logical representation of physical resources. – Ma&e storage fundamentally more flei#le and responsi(e to change than
standalone storage units"
– Ma&es dis& storage management automatic+ time)sa(ing and non)disrupti(e to the #usiness"
Source3 4(aluator Group
%is& Storage $irtuali'ation %eli(ers 6 $alue
*nterprie Strategy 2ro)p report t1at early virt)aliation adopter on average every year ave'
345 on hardare costs
675 on softare costs
685 on S*7 administration costs
/it1 a 96 million b)dget pending 9:;;,;;; on 1ard%are, 93;;,;;; on oft%are, and 9<;;,;;; on adminitration
Source3 http3,,searchstorage"techtarget"com,tip,1+2898:+sid;<gci1122:09+00"html
Annual savings would be $209,000

rom many independent arrays " " To a single,multiple pool,s of storage

SAN 0ol)me Controller
SAN
to the S!".
5ogical SVC is #n $and%.
!ll data goes through the SVC.
Consolidates function and adds speed"

+nified Management
+ni. @ #in). @ /indo% @ #in).
0irt)al Di$ =0Di$>
S*7 $olume Controller >%is& $irtuali'ation? - Ma$ing Storage Management Simpler and Storage More Cot *ffective
eterogeneo) - Pooled capacity @ Non-dir)ptive Data Move@Migration
Driver Driver Driver Driver
RAID controller 3
RAID controller 6

*ac1 allocated #+N correpond to pecific pace on a et of p1yical di$
# + N
4
# + N

S*7

&1e SAN 0ol)me Controller "in)late t1e 1ot ytem from t1e effect of c1ange in t1e p1yical environment
RAID controller 3
RAID controller 6

P1yical config)ration c1ange impact 1ot and application availability!
Managed Di$
SCSI #+N
0 D
ig1 Perf #o% Cot
Storage Allocation - SAN 0ol)me Controller

Managed di$ are collected into Managed Di$ 2ro)p to facilitate different categorie of torage device


SCSI #+N are till mapped 6- to-6 to %1at t1ey believe are 1ot E b)t are really Managed Di$ on t1e SAN 0ol)me Controller

SAN Volume Controller
MDG1
more capacity required.
SVC System: • One to four node-pairs. • One I/O group = one nodepair
Managed Disks: • Select !"#s from up to $% physical
dis& systems. • 'ssign !"#s to either S() or
existing hosts. • )an group *anaged Dis&s into
Managed Disk Groups.


I/O Group 0
I/O Group 1
*anaged by *aster )onsole
,- mirrored cache per node
"ode:
+our +ibre )hannel ports
'ninterrupti(le
!atteries,
Master
Console
SAN %it1 42bp fabric
GP *S'45556 4755
itac1i #ig1tning &1)nder
&agmaStore AMS, /MS
*MC C#ARii(N
-3+S / (IO
Multiple targets
IBM DS
DS%555
Ne%
B)ll Store/ay

Create tier of
torage and enable
manner from a
Demontrated over

Traditional S*7 6! Different device type and torage
tier 3! Different m)lti-pat1ing driver <! Different management interface
SAN
S*7 $olume Controller 6! All virt)al di$ loo$ t1e ame to t1e 1ot'
one type, one driver, one management interface
3! Manage different torage for &iered Information Infratr)ct)re
<! S)pport M)lti-0endor trategy
Incredi#le Interopera#ility
SAN 0ol)me Controller can virt)alie IBM and non)IBM torage, over 6<; ytem from J
IBM
*MC
P
DS
S)n
Dell
NetApp
)Hit)
and certification for $Mare

7on)disrupti(e %ata Migration Traditional S*7 6! Stop application 3! Move data <! Re-etabli1 1ot connection 4! Retart application
S*7 $olume Controller 6! Move data
ot ytem and application are not affected!
SAN
Copy Ser(ices >!iT and -eplication? ith S$C Traditional S*7 Replication API differ by vendor
Replication detination m)t be t1e ame a t1e o)rce
Different m)ltipat1 driver for eac1 array
#o%er-cot di$ offer primitive, or no replication ervice
S*7 $olume Controller Common replication API, SAN-%ide, t1at doe
not c1ange a torage 1ard%are c1ange
Common m)ltipat1 driver for all array
Replication target can be on lo%er-cot di$, red)cing t1e overall cot of e.ploiting replication ervice
SAN SAN
SAN 0ol)me Controller SAN 0ol)me Controller
SAN la1Copy "o)tide t1e bo.

S*7 $olume Controller Copy Ser(ices
SAN Metro or 2lobal Mirror "o)tide t1e bo.

Prod)ction Site DR Site
Manage Storage as a -esource+ 7ot Separate Boes
Traditional S*7 Capacity i iolated in SAN iland M)ltiple management point Poor capacity )tiliation Capacity i p)rc1aed for, and o%ned by
individ)al erver
S*7 $olume Controller Combine capacity into a ingle pool +e torage aet more efficiently Single management point Capacity p)rc1ae can be deferred )ntil t1e
p1yical capacity of t1e SAN reac1e a trigger point!
SAN
Manage Storage in a Consistent Manner Traditional S*7 Capacity i iolated in SAN iland M)ltiple management point Poor capacity )tiliation Capacity i p)rc1aed for, and o%ned by
individ)al erver
S*7 $olume Controller Single management point Add &otalStorage Prod)ctivity Center
– Aet and capacity reporting
– Config)ration reporting and management
SAN SAN
S$C %eli(ers *(aila#ility+ !erformance and Scala#ility
Deigned and b)ilt %it1 t1e reiliency of a torage controller!
S)pport nondisru!tive firm%are )pdate and hardware maintenance on t1e di$ array!
S0C i a proven offering, 1aving been delivering benefit to c)tomer for fo)r year!
ItDs resilient
controller It scales to manage large
en(ironments
a t1e "astest SPC-6 benc1mar$ *0*R )bmitted =for (nline &ranaction Proceing>!
a t1e "astest SPC-3 benc1mar$ *0*R )bmitted =for #arge ile &ranfer, 0ideo and Databae L)erie>!
Many reference F)ote ignificant performance improvement!
Scale from very mall config)ration =6&B> to large enterprie = :;;&B> and gro%ing

orrester Consulting Total 4conomic ImpactE study of S$C
Sur(eyed four S$C customers to understand costs and #enefits
– Created composite model #ased on inter(ie findings
-is&)adFusted pay#ac& period3 1"9 years
Summary f inancial results /riginal estimate -is&)
adFusted
Total #enefits >!$? 61+0H1+10H 69:+;0
Total >7!$? 69+881 6:2+99
Internal rate of return >I--? ; ;;

Jey Cost Sa(ing *reas ) /#ser(ed #y orrester in S$C Customers
-eduction in storage management and administration cost"
– :;5 improvement!
-educed cost of storage"
– Capitalie on being able to p)rc1ae t1e lo%et cot torage reo)rce -ontrolled growth on average by 20./
Impro(ed a(aila#ility to data)dri(en applications
– Minimie do%ntime aociated %it1 migrating data bet%een torage aet -$210,000 in annual savings/


IBM 1a 1ipped o(er 1:+000 S$C nodes r)nning in more t1an 9;00 S$C systems"
– H0 to SMB customers"
– 90 to 5arge 4nterprise customers"
&1ere are more t1an 1:0 customer references for SAN 0ol)me Controller!
SAN 0ol)me Controller i a pro(en offering t1at 1a been delivering benefit to c)tomer for fo)r year!

/(er 1:+000 storage engines shipped running in more than 9+:00 S$C systems
IBM Information Infrastructure for Storage $irtuali'ation $M System Storage S!" Volume Controller+ v,.-
Client (alue – Impro(es storage utili'ation and reduces
storage groth – -educes poer and cooling reKuirements
helping ma&e data centers more Agreen – Boosts performance and simplifies storage
management for IBM and non)IBM dis&
-easons to Buy – 5oers physical storage reKuirements ith ne
Space)4fficient designs for $irtual %is& and lashCopy
– Built)in $irtual %is& Mirroring – 5o entry priceL non)disrupti(e upgrades
ibm!com,storage,s(c
%n"ormation Availability

1" !ro(ide for day)to)day operational storage management"
– *n)re IBM 1ard%are provide Standards(ased '!en %nter"aes to adminiter and config)re IBM 1ard%are conitently!
– 3rovide management so"tware that uses these o!en inter"aes to monitor and config)re t1e infratr)ct)re!
2" !ro(ide the a#ility for customers to monitor and manage their ser(ers+ storage systems+ netor&s+ data replication and other related ser(ices"
– IBM Sytem Director o)ndation'
– IBM %irector ;"2 J for 1eterogeneo) erver!
– IBM !roducti(ity Center J for 1eterogeneo) torage! :" 5in& to o(erall IT ser(ice management"

&1e Need for Common, (pen Interface - SNIA and SMI-S
!ro#lem3 *ac1 1ard%are man)fact)rer did not %ant to invent ne% oft%are to manage eac1 ne% torage device!
*pproach3 A collaborative effort, called t1e "Storage Management Initiative =SMI> ta$ force!
-esult3 (pen Standard "SMI-Specification interface!

SAN
/it1 open interface li$e SMI-S, %e can empo%er adminitrator %it1 a)tomated tool to improve t1e effectivene of t1e torage environment!
ile and databae data /ptimi'ation
ile system and data#ase capacity utili'ation reporting+ trending and charge#ac&
!ro(isioning
Integrated ith %is& pro(isioning operations
*(aila#ility

SAN
abric !ro(isioning
*(aila#ility

SAN
Replication !ro(isioning
*utomated source , target matching

SAN
Di$ !ro(isioning
/ptimi'ation
*(aila#ility
Cache utili'ation

IBM &otalStorage Prod)ctivity Center Centrali'ed Storage Management ith ocus on the =ser 4perience"
– Single Point of Control @ SMI-S Baed!
– Data, Di$, &ape, abric, ReplicationO Management Service!
– IBM and non-IBM device management!
Single %ata -epository for Storage Infrastructure Monitoring+ -eporting and management!
– Single management erver and databae!
N T!C for -eplication is separate"

* d
B ) n d le
o)r MaHor &PC Component
TotalStorage !roducti(ity Center for %ata – %ata collection and analysis+ file systems and data#ases – -eporting+ charge#ac& and Kuotas – *utomated actions – Support for heterogeneous dis& >IBM+ 4MC+ @%S+ @!+ 4ngenio? – IBM :;89 Tape *sset -eporting
TotalStorage !roducti(ity Center for %is& – %is& system management – !erformance managementOIBM and heterogeneous storage – Storage pro(isioningOIBM and heterogeneous storage
TotalStorage !roducti(ity Center for a#ric – S*7 topology display and management – 4(ent reporting+ performance reporting – Security enforcement (ia 'one control – @eterogeneous fa#ric support >Brocade+ Cisco+ Mc%ata?
TotalStorage !roducti(ity Center for -eplication – Single point of control for point)in)time and remote (olume replication
ser(ices – *utomated source)target matching – Cross)de(ice consistency groups+ %S8000,4SS and S$C lashCopy and
Metro Mirror
0al)e of IBM &otalStorage Prod)ctivity Center /ptimi'e IT t1ro)g1 operational
management of torage!
5e(erage the information from report to ma$e better plan, policie and deciion!

Bac&up Master Console
!roy CIM/M !roy CIM/M
G=I
G=I
of o)r prod)ct 1aving a eparate
config and management conole
. IBM STG currently maintains a portfolio of storage offerings that utili'e 8 different architectures

MAS&*R C(NS(#*
G=I
/it1 Sytem Storage Prod)ctivity Center . IBM strategy is to reduce compleity in the data center #y consolidating and centrali'ing management

*nd goal i to 1ave one
)niveral mater conole %it1 all of o)r IBM torage
ol)tion
SSPC =Server E M& 3;:>
!erformance upgrade >optional?
&PC Baic *dition =Soft%are>
5icensed includes the first year of softare support and su#scription
4ach additional year >softare support and su#scription?
Maintenance and S)pport =Sol)tion>
SS!C ser(er and T!C Basic 4dition softare maintenance,support can
match the %S8J or S$C"
280; Ser(er ordera#le in **S only"
T!C S ordera#le in **S or !!*"
#it Price >su#Fect to change until G*?
280; 69+:00 T!C Basic 4dition 6:+200
Total 6+;00

Day-to-day operational torage management!
– Ne% IBM torage 1ard%are aleJpartner %it1 yo)r torage oft%are eller!
– C)tomer %1o are intereted in torage performance monitoring!
– C)tomer %1o are intereted in end-to-end torage management!
– C)tomer %1o are intereted in implify t1eir environment and poition t1em for a)tomation!
Contrib)ting to ignificant I& proHect, li$eJ
– Storage Aement!
ey Sale Play for Infratr)ct)re Management

Remember - /1at Are C)tomer Really A$ing or?
hat a customer saysP hat a customer really meansP
I need a torage aement I need a #aseline of hat I ha(e to cost)Fustify any future proFects
I need to control my gro%t1 I need to reduce costs+ and a(oid hiring more people"
I need to implement "tiered torage I need to reduce costs+ and read in a maga'ine this is the ay to do it"
I need to do "Information #ifecycle Management
I need to reduce costs+ comply ith go(ernment regulations+ and adopt #est practices+ and read in a maga'ine this is the ay to do it"
Qour Strategy is toP – igure out hat customers are really as&ing for"
– Sho them ho T!C ill help"
– @elp them use T!C effecti(ely"

4asily upgradea#le to3
. *sset+ Capacity R !erformance reporting
R integrates ith3
. IBM Ser(ice Management
. or&flo *utomation
SSPC SSPC

/1y Bac$)p and Recovery? The !ro#lem) #oing data can re)lt in application o)tage, proHect delay,
diverted reo)rce, lo of income or reg)latory cr)tiny!
hat Causes 5oss of %ata Some 4amples3

Disaster

e ata
2rotection
tools.

$ackup 3 restore 4ata 2rotection5 *rchi(e , retrie(e
Space management >@SM? %isaster reco(ery management

6iles7 Auisition -*ew/5 Bloc&)le(el continuous data protection and near)instant reco(ery of applications and data running
on indos"
Continuously protects important files ithout doing a thing"
7o scheduling+ 7o tapes+ 7o confusion+ 7o orry+ 7o effort"
hen a file is sa(ed""" – * copy is stored on local dis& – *nother copy can #e sent to a file ser(er or 7*S" – *nother copy can #e sent to a TSM Ser(er"
&ranparent, al%ay-on, airbag-li$e protection ! /1et1er connected or not!
ile Ser(er or =SB or -emo(a#le
TSM Ser(er
a t i o n > 3 ?

© 2008 IBM Corporation52:3
C)rrent ileG (ffering
press -estore Comprehensi(e data protection solution for indos ser(ers %is&)#ased+ #loc&)le(el+ incremental)fore(er technology 7ear)instant restore of data from any point)in)time+ anyhere in the
en(ironment
press -estore %- !olicy)#ased Aselecti(e replication for off)site reco(ery @ighly)efficient use of *7 and storage resources
change -estore 200 -apidly reco(er any e)mail o#Fect3 message+ attachment+ calendar entry+
contact+ tas&s+ notes
press Bare Metal -estore -estore the /S (olume on dissimilar hardare in 1 hour for #usiness
continuity
UNIX Window s

UNIX OS/39 0

UNIX OS/39 0

3! Arc1ive and Retrieve!
4! Diater Recovery Planning and Management!
4nterprise *ttri#utes3
– /or$ acro 6< different operating environment!
– *.tenive erver )pport from Intel-baed t1ro)g1 mainframe!

Server 3roduts
TSM Basic 4dition .Bac&up,-eco(ery . *rchi(e,-etrie(e
TSM 4tended 4dition >Basic plus""? .Ti(oli %isaster -eco(ery Manager >%-M? .Bac&up (ia 7%M! for 7*S .5arge 5i#raries >additional tape support?
System Storage *rchi(e Manager >SS*M? .%ata -etention to meet regulatory reKuirements
TSM 4press .SMB or #ac& office dis& to dis& #ac&up
lient 3roduts
Application and Databae Protection TSM for Mail TSM for %ata#ases TSM for 4nterprise -esource !lanning >4-!? TSM for Microsoft Share!oint TSM for *pplication Ser(ers TSM 4press for MS 4change TSM 4press for MS SV5
Bare Mac1ine Recovery TSM for System Bac&up and -eco(ery >*I? Cristie Bare Machine -eco(ery
Advanced Replication TSM for *d(anced Copy Ser(ices TSM for Copy Ser(ices
Space Management @ Data Movement TSM for Space Management TSM @SM for indos TSM for Storage *rea 7etor&s >S*7?
IBM &ivoli Storage Manager amily of Prod)ct

&SM Server &SM Storage&SM Client
Adminitration +er Interface
Storage *rea 7etor&
Databae

A
B
C
D
A1
B1
C1
D1
B2
C2
A2
C3
B3
C2 C3

ast+ direct restore from dis& to client
Scheduled migrations
*utomatic migration to tape outside of #ac&up indo
DB
hat data
ile)5e(el granularity
Policy Domain 1
. Tape utili'ation constantly monitored
.Tape is mounted
./riginal tape is returned to the scratch pool
. Can #e scheduled to occur at specified times
6;;5 3: 5
f)ll ; 5 f)ll
layer and dri(es
TSM supports3 TS1120 dri(e encryption 5T/ 9 dri(e encryption
*ncrypted Data ey
0ol)me Serial GGG
*ncrypted Data ey
0ol)me Serial GGG

– C)tomer %it1 /indo% or 1eterogeneo) environment!
– *nterprie or SMB c)tomer %1o are )n1appy %it1 a competitive prod)ct'
– Symantec 0erita Bac$)p*.ec or NetBac$)p, *MC #egato Net%or$er!
– Mid-ied and large enterprie'
– /it1 ditrib)ted department or remote office! – /1o %ant to leverage t1eir Storage Area Net%or$!
– C)tomer %1ere 1ig1 availability and b)ine contin)ity are $ey deciion factorJ!!reF)ire additional bac$)p@recovery tec1niF)e!
– C)tomer %it1 arc1iving or reg)latory compliance reF)irement!
#veryone *eeds Some Amount o" %nsurane:

Uo)r #ocal &ivoli Rep 1a acce to an R(I tool!
– Analyi of 1ard%are@adminitration cot, b)ine impact from inadeF)ate recovery!
B)ine Partner can acce t1e IBM B)ine 0al)e Analyt &ool at t1e &ivoli no%ledge Center
– 1ttp'@@%%%-<;7!ibm!com@oft%are@tivoli@partner@ec)re!H p?tabale- toolVcontentroia
– &1e IBM B)ine 0al)e Analyt &ool enable yo) to artic)late t1e economic val)e of IBM ol)tion E t1e tool can be )ed %it1 CI(, I&, and #(B e.ec)tive to ma$e t1e financial b)ine cae for t1e entire &ivoli portfolio, bot1 a individ)al prod)ct and a complete ol)tion

%ifferent *pproaches to $irtuali'ation ot-baed =0erita 0R, IBM@Sof&e$>
YSoftare runs on host ser(ers or firmare in @ost #us adapters
YCreates (irtual (olumes from storage attached to the host ser(ers
S%itc1-baed =*MC Invita, Incipient NSP, 0erita SN> - Split-pat1 arc1itect)re for intelligent device
YSoftare runs in sitches ithin the S*7
YCreates (irtual (olumes from storage attached to the S*7
Appliance@Net%or$-baed =IBM S0C, alconStor IPStor, DataCore>
YSoftare runs in Aengines or Anodes
YCreates (irtual (olumes from storage on S*7
Di$ Controller-baed =DS +SP 0@0M, S)n, P>
YSoftare runs in a dis& controller array

Storage $irtuali'ation Implementations
Appliance or net%or$-baed YIn)#and implementation YCaching enhances performance Y *ppliance or array)#ased Copy Ser(ices
Storage
4one
ost
4one
*MC InvitaIBM S0C

DS +SP 0@0M =P@S+N>

*rchitecture *d(antages %isad(antages 4amples
In-band appliance Simple and cot effective form factor! Mot %idely deployed approac1 today Ric1 et of advanced torage application available
Initial implementation lac$ed calability and performance, b)t ne%er deign are m)c1 more calable and "*nterprie cla
IBM SAN 0ol)me Controller IBM Nerie gate%ay DataCore SANymp1ony alconStor IPStor R*#DA&A +nified Storage 2ate%ay Bl)eArc &itan Cloverleaf iSN
()t-band appliance 2ood calability and performance
ReF)ire 1ot agent, creating management comple.ity and potential for ec)rity breac1e!
#SI #ogic =t1ro)g1 StoreAge S0M acF)iition>
Split-pat1 arc1itect)re for intelligent device =SPAID>
S)ited for *nterprie data- center deployment
0irt)aliation controller oft%are )nproven and lac$ $ey torage application Intelligent %itc1e and PBA 1ave minimal mar$et penetration! Relatively 1ig1er cot pr! port
*MC Invita =Brocade@CISC(> #SI #ogic t1ro)g1 StoreAge S0M acF)iition =Brocade> Incipient Net%or$ Storage Platform iNSP =CISC(> )Hit) 0S 8;; =Brocade>
Di$ Controller baed *nterprie cla calability and performance
Potential for vendor loc$-in DS +niveral Storage Platform =+SP 0 @ +SP 0M>
Source3 TaneFa Group

Attac1e to #in)., +NIG and /indo%
S*7 Sitches and %irectors *.ternal torage m)t be SAN attac1ed
ReF)ire pecial "intelligent SAN %itc1e t1at can r)n in-band oft%are
In(ista *ppliances Pair of appliance manage mapping table
Comm)nicate to intelligent SAN %itc1e via IP net%or$
Storage Internal torage' N(N*

/1at yo) really need to $no% abo)t Invita 5imited Interopera#ility
– #imited to device )pported by *MC Po%erPat1, P P0-#in$ and Symantec DMP In(ista Control !ath is an Aout of #and appliance
– CPC i Intel-baed 1ard%are r)nning /indo% (S
– If yo) loe bot1 CPCJ yo) loe acce to data
– No calability for t1e CPC
– 3 or 4 DCP on intelligent %itc1e CISC( SSM, or Brocade AP7;;B@A4-6 !oor !erformance and Scala#ility
– No cac1e No SPC-6 or SPC-3 benc1mar$
– Add <; Wecond on all I(
– Scalability' ;;; 0irt)al 0ol)me and Storage elementX ;; initiator =1ot BA> Management
– Not integrated %it1 SMI-S, #imited integration %it1 *MC Control Center
– /eb-baed 2+I and C#I
– No reporting tool =nli&e IBM S%%+ 4MC Multipath is not free of charge *rray #ased Mirroring
– #icence and fle.ibility i)e
– Mirroring i done by S0C Prod)ct %a 2A in Dec! 3;;:
*MC 1a only anno)nced a ingle c)tomer reference and
claim abo)t 3;; c)tomer
/1at yo) really need to $no% abo)t Invita E Cont! 5imited *d(anced Copy Ser(ices
– Data migration and 0ol)me Cloning only
– Invita doe not 1andle Remote Replication – Invita depend on e.ternal replication ol)tion
Di$ array replication Re)lt in array and vendor binding – DMG-DMG, C#ARii(N-C#ARii(N, no intermi.
– (t1er replication ol)tion li$e *MC RecoverPoint – Not integrated into Invita, eparate ol)tion – Invita and RecoverPoint cannot r)n on ame AP43;@SSM blade, need dedicated
1ard%are – RecoverPoint and Invita =RecoverPoint a1ya>
0irt)aliation ol)tion 0irt)aliation ol)tion

-e(ie Kuestions . @o is S$C priced and ho is the maFor competitor
. It i priced by &B and *MC Invita
. It is tier priced and @! True Copy
. It is processor #ased priced and @%S Tagamastore
. /ne time charge and Sun !lanet . hat the 9 maFor components of T!!C
. Date, Di$, abric, and Replication
. %ata+ dis&+ fa#ric+ pro(isioning
. %is&+ tape+ fa#ric+ and (irtuali'ation
. %is&+ energy management+ fa#ric+ and (irtuali'ation . Ti(oli Storage Manager support the a#ility to set policies for storage of data #ased on access needs+
performance+ and cost" hat is that function called . %ata %eduplication . ierarc1ical Storage Management =SM> . Storage $irtuali'ation . Glo#al Mirroring

Mod 10 Ibm System Storage Software v1 Wls.2

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