Thanks. I don't pay too much attention to auto-assign anymore. I usually split disks anyway (even disks to node 2, odd disks to node 1)
--tmac
*Tim McCarthy* *Principal Consultant*
On Thu, Jun 11, 2015 at 7:06 AM, Borzenkov, Andrei < andrei.borzenkov@ts.fujitsu.com> wrote:
Nope, it’s the same for FC and SAS. Older versions of Data ONTAP required full loop/stack ownership, newer Data ONTAP versions relaxed it on per-shelf basis (but I believe it is disabled by default).
*From:* tmac [mailto:tmacmd@gmail.com] *Sent:* Thursday, June 11, 2015 2:04 PM *To:* Borzenkov, Andrei *Cc:* Edward Rolison; toasters@teaparty.net *Subject:* Re: Disk auto assign
For auto-assign to work, all disks on a shelf must belong to only one controller.
Further, if I recall, if you are using SAS, then the whole stack must be owned by one controller.
If you split between controllers, it will not work.
--tmac
*Tim McCarthy*
*Principal Consultant*
On Thu, Jun 11, 2015 at 6:56 AM, Borzenkov, Andrei < andrei.borzenkov@ts.fujitsu.com> wrote:
If you just performed “replace” without un-/re-assigning drives that became spare, this is expected. Spares still belong to controller and will block auto assignment.
*From:* toasters-bounces@teaparty.net [mailto: toasters-bounces@teaparty.net] *On Behalf Of *Edward Rolison *Sent:* Thursday, June 11, 2015 1:09 PM *To:* toasters@teaparty.net *Subject:* Disk auto assign
I've just added some new shelves to a (7-mode) filer pair, bring them up to two stacks of 10 shelves.
I'm trying to get 'autoassign' working, and it isn't.
I have:
- swapped drives such that each 'head' has only disks from one 'stack'.
Head 1 has 0a/5b
Head 2 has 5a/5d
I've had to manually trigger a small number of 'replace' operations. And then switched on autoassign in the options.
I _think_ that should be it, but ... there's something I'm missing, because autoassign isn't working.
Does anyone have suggestions for why this might be, or what else I could check? (I'm wondering if there's a misassigned but 'failed' drive that otherwise isn't showing up?)
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