==> In article <[EMAIL PROTECTED]>, "Levinson, Donald A." <[EMAIL PROTECTED]> writes:
> Can anyone tell me how they defined their sequential FILE devclass and how > the underlying hardware is setup? It seems like the best way to do this is > to have multiple physical disks and spread the TSM volumes across the disks > in a way to encourage spreading the i/o across the spindles. I've got a large LV striped across 5 5-disk RAIDs of 36GB SSA disk. I use this space in a manner similar to DISK stgpools, as landing-pad space expected to be emptied most nights, so I'm less concerned about the fail-one-RAID == fail-whole-filesystem problem. The 5 disk raids were recommended as sweet spots for performance. I find the overhead a little oogey, butI can see that 15-disk RAID might be a wee tad constraining. - Allen S. Rout
