We use Clariion ATA for diskonly backup in the following configuration: 2 Clariions on different locations, each with 15 Raidgroups 4+1 in Raid 5. (Raid 5 because of disktype vols with random access)
Each Raidgroup has 1188 Gbyte that are used as 2 LUN's with 594 GB each. Within each lun there are 2 directories: one for disk vols (4 Gbyte) and on for tapevols (4Gbyte) We use a small amout of FC Disk 30 GB on the clariion as primary disk pool with maxsize=50 Mbyte Migration next to ATA Disk Pool (2 Tbyte) with 10 days retension (most backup files should expire here) next to ATA Tapepool (~10 Tbyte) for long term. At the second site we have a large copypool with 4 GB sequential volumes. Regards, Stefan Holzwarth -----Ursprüngliche Nachricht----- Von: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] Im Auftrag von Hart, Charles Gesendet: Freitag, 12. August 2005 14:30 An: [email protected] Betreff: Re: Working SATA Disk Pool Configuration Yep 594GB Vols, @ 1-4 Vols per pool, so we have 594GB to 2TB TSM Pools. Also I forgot to mention we are writing to 3592 Tape Drives connected to 2GBs SAN ports. Regards, Charles -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Ben Bullock Sent: Thursday, August 11, 2005 4:30 PM To: [email protected] Subject: Re: Working SATA Disk Pool Configuration Thanks for the info, we have similar hardware and are thinking about finally moving TSM to the SAN. one question though on the last "TSM" section, did you mean to say, "Defined 594~GB~ Disk Vols in TSM Storage Pool from 1-4 Vols per pool". Just looking at the math, I'm not sure you could (or would want to) make 594 individual volumes Thanks, Ben -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Hart, Charles Sent: Thursday, August 11, 2005 3:10 PM To: [email protected] Subject: Working SATA Disk Pool Configuration Someone had asked how we configured our Clarrion SATA Disk for TSM Disk Pools... With this cfg we see 168GB Per Hour Data Transfer per stream from Disk pool top Tape Pool Clariion: CX700 Drives: 320 GB SATA Raid Sets: Raid 3 (4+1) ((5 drives per set)) Number of Luns per Raid Set: 2 Approx Lun Size: 594GB Stripe Size: 128K AIX OS Cfg Created 594GB Volumes with 64K Stripes TSM Defined 594 Disk Vols in TSM Storage Pool from 1-4 Vols per pool
