Thank you very much, that's our next approach as we did try 2x600 LV's with better success.
Regards, Charles -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] Behalf Of Wheelock, Michael D Sent: Friday, November 12, 2004 9:56 AM To: [EMAIL PROTECTED] Subject: Re: TSM and SATA Disk Pools Hi, I have had issues with Fibre disks when they were cut into huge raw lv's like this. I am no expert, but I think there is something weird about TSM's handling of large raw lv's that introduces a serialized step (not sure exactly, but it seemed to really bottleneck after I added two large lv's...when I split them, things were fixed without changing any hardware/raid settings). Michael Wheelock Integris Health -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Hart, Charles Sent: Friday, November 12, 2004 9:22 AM To: [EMAIL PROTECTED] Subject: TSM and SATA Disk Pools Been asking lots of questions lately. ;-) We recently have put our TSM Disk Backup Pools on Clarrion SATA. The TSM Server is being presented as 600GB SATA Chunks Our Aix Admin has put a Raw logical over two 600GB Chunks to create a 1.2TB Raw Logical Volume Right now we are seeing Tape migrations @ about 4GB in 6hrs, where before on EMC Symetrix disk we saw 29-40GB per hour. If anyone would like to share their TSM SATA Diskpool layout and or tips we would much appreciate it!!! TSM Env AIX 5.2 TSM 5.2.4 (64bit) p630 4x4 8x3592 FC Drives Regards, Charles ************************************************************************************************** This e-mail may contain identifiable health information that is subject to protection under state and federal law. This information is intended to be for the use of the individual named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited and may be punishable by law. If you have received this electronic transmission in error, please notify us immediately by electronic mail (reply). **************************************************************************************************
