David asked me what I meant by "filled up". If you make the unwise decision to use an SSD as your ZIL, at some point days to weeks after you install it, all of the pages will be allocated and you will suddenly find the device to be slower than a conventional disk drive. This is due to the way SSDs work. A great write up about how this works is here:
http://www.anandtech.com/show/2738/8 The industry work around for this issue is called TRIM and AFAIK the current implementation of TRIM in Solaris does not work for ZIL devices, only for pool devices. If it does, then SSDs would not be a bad option, but the DDRdrive is so much better I wouldn't waste the time. If you don't believe me, try it and post your benchmarks for hour one, day one and week one. ;) -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
