Adrian
Without knowing more about your environment, it's difficult to answer what
is best for you.
Separating the pools by data retention does have it's advantages, one of
which is that reclamation could be more efficient. However you are going
to end up using more tape media overall.
As for the Disk / tape HBA split, it is recommended that they are. I've
not personally seen any issues relating to this, but there are people on
here that have if memory serves.
IBM would also recommend this if you called them up.
Steven
Steven Langdale
Global Information Services
EAME Storage Planning and Implementation
Enterprise Architecture - Backup & Recovery Architect
Adrian Compton <acompton AT ASPENPHARMA DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
19/07/2010 08:56
Please respond to
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
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Subject
[ADSM-L] Copy Pool Question
Caterpillar: Confidential Green Retain Until: 18/08/2010
Hi All
I have 3 copy pools on my TSM server.
One for normal type retention, one for monthly, and one for yearly.
The though process behind it was that similar type retention data i.e
monthly schedules are moved to monthly copy pools etc.
Am iwrong in doing this.
If I keep them all in one copy poll, is this better, and are there
performance/amount of tapes used issues that I will experience.
I find my offsite's create process are taking forever. I use a TS3310
Tape Library with 6 LTO3 FC drives, on TSm 5.5.4 on AIX 5.3 IBMp570
LPAR.
We have also not split FC tape data and SAN traffic and both are over
the same HBA.
Thanks in advance.
tsm: TSM-PLZ>q stg
Storage Device Estimated Pct Pct High
Low Next Stora-
Pool Name Class Name Capacity Util Migr Mig
Mig ge Pool
Pct
Pct
----------- ---------- ---------- ----- ----- ----
--- -----------
ARCHPOOL LTO3310DE- 7,089 G 3.0 40.0 90
70
VCL
DISKPOOL DISK 1,501 G 66.1 66.1 98
70 OVERFLOW
DISKPOOL1 DISK 1,500 G 85.2 85.2 98
70 OVERFLOW
INFORMIXMO- LTO3310DE- 26,084 G 9.7 15.0 90
70
NTH VCL
INFORMIXUN- LTO3310DE- 0.0 M 0.0 0.0 90
70
LIMITED VCL
INFORMIXWE- LTO3310DE- 90,061 G 17.4 24.0 90
70
EKLY VCL
INFORMIXYE- LTO3310DE- 8,192 G 3.1 10.0 90
70
ARLY VCL
LEGACY LTO3310DE- 0.0 M 0.0 0.0 90
70
VCL
MONTHPOOL LTO3310DE- 28,750 G 42.8 56.0 90
70
VCL
OFFSITE_33- LTO3310DE- 308,130 G 17.9
10 VCL
OFFSITE_MO- LTO3310DE- 70,410 G 21.1
NTHLY VCL
OFFSITE_YE- LTO3310DE- 81,920 G 0.5
ARLY VCL
OVERFLOW LTO3310DE- 73,675 G 20.2 28.0 90
70
VCL
TAPEPOOL LTO3310DE- 111,220 G 21.7 32.5 90
70
VCL
YEARPOOL LTO3310DE- 16,384 G 0.7 5.0 90
70
VCL
Regards
Adrian Compton
Group IT Infrastructure
Pharmacare Limited trading as Aspen Pharmacare
P O Box 4002
Korsten
Port Elizabeth
6014
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