On 05 May, 2010 - Michael Sullivan sent me these 0,9K bytes: > HI, > > I have a question I cannot seem to find an answer to. > > I know I can set up a stripe of L2ARC SSD's with say, 4 SSD's. > > I know if I set up ZIL on SSD and the SSD goes bad, the the ZIL will > be relocated back to the spool. I'd probably have it mirrored anyway, > just in case. However you cannot mirror the L2ARC, so...
Given enough opensolaris.. Otherwise, your pool is screwed iirc. > What I want to know, is what happens if one of those SSD's goes bad? > What happens to the L2ARC? Is it just taken offline, or will it > continue to perform even with one drive missing? L2ARC is a pure cache thing, if it gives bad data (checksum error), it will be ignored, if you yank it, it will be ignored. It's very safe to have "crap hardware" there (as long as they don't start messing up some bus or similar). They can be added/removed at any time as well. /Tomas -- Tomas Ögren, st...@acc.umu.se, http://www.acc.umu.se/~stric/ |- Student at Computing Science, University of Umeå `- Sysadmin at {cs,acc}.umu.se _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
