On 07/07/2014 12:08 PM, Ibrahim Tachijian via smartos-discuss wrote:
* ZFS "sync" setting set to disabled. Data loss is not an issue for
us, we only care about performance.
* Dedupe off, compression off (We're saving video)
* ZIL is unnecessary because of "sync" disabled.
* RAIDZ level? We are unsure.
Given these parameters, and the experience joyent has had with HGST
4TB SAS drives. How large of an array, and what RAIDZ or mirrored vdev
(raid10-like) would I require to be able to meet my above mentioned
requirements?
Just how little an issue is "Data loss"?
If you truly only care about performance, then you just stripe across
disks with no redundancy at all.
But when the first disk dies, the pool will be broken.
RAIDZ vs mirroring depends partly on how many disk failures you
want/need to be able to survive.
I think you'll need to clarify that a bit more before anyone will be
able to give you a good answer.
-Nahum
-------------------------------------------
smartos-discuss
Archives: https://www.listbox.com/member/archive/184463/=now
RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00
Modify Your Subscription:
https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb
Powered by Listbox: http://www.listbox.com
