Re: Gen1 to Gen2 Upgrade/coexist
2004-03-31 09:41:36
see below.
Cordiali saluti
Gianluca Mariani
Tivoli TSM Global Response Team, Roma
Via Sciangai 53, Roma
phones : +39(0)659664598
+393351270554 (mobile)
gianluca_mariani AT it.ibm DOT com
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Corporation product that "it is very easy to be blinded to the essential
uselessness of them by the sense of achievement you get from getting them
to work at all. In other words – and this is the rock solid principle on
which the whole of the Corporation's Galaxy-wide success is founded
-their fundamental design flaws are completely hidden by their
superficial design flaws"...
Anoop Das <danoop AT IN.IBM DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
31/03/2004 15.40
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Subject
Gen1 to Gen2 Upgrade/coexist
Am using an LTO 3583 with 2 scsi Gen1 drives and GEN1 cartridges.
Planning
to upgrade to 4 fiber Gen2 drives in the 3583. The SCSI drives will be
removed. The current data exists on over 150 gen1 cartridges and hence do
not plan to move to gen2 cartridges immediately. The setup is directly
attached to the pSeries servers running AIX 5.1 and TSM Server
Got some queries
1. Will Gen2 drives be able to read and write(new as well as append to
existing tapes) on the existing gen1 cartridges without problem?
yes
2. What speed will I get out of the new setup? Gen2 speed or Gen1 speed?
using LTO1 tapes on LTO2 drives you'll get speeds inbetween the two.you
will have to test for your specific environment.
3. If I coexist the new gen2 drives with the existing gen1 drives where
can
I get stuck?
you have to get the feature upgrade for the 3583.it needs to be
partitioned in separate libraries for LTO1 and 2 drives.then you have to
assign the storage columns to the separate libraries.LTO1 drives cannot
write LTO2 media.TSM will see two medium changers(libraries).
Anyone experienced in this kind of a scenario?
Anoop
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