On 03 August, 2010 - valrh...@gmail.com sent me these 1,2K bytes: > I'm running a mirrored pair of 2 TB SATA drives as my data storage drives on > my home workstation, a Core i7-based machine with 10 GB of RAM. I recently > added a sandforce-based 60 GB SSD (OCZ Vertex 2, NOT the pro version) as an > L2ARC to the single mirrored pair. I'm running B134, with ZFS pool version > 22, with dedup enabled. If I understand correctly, the dedup table should be > in the L2ARC on the SSD, and I should have enough RAM to keep the references > to that table in memory, and that this is therefore a well-performing > solution. > > My question is what happens at power off. Does the cache device essentially > get cleared, and the machine has to rebuild it when it boots? Or is it > persistent. That is, should performance improve after a little while > following a reboot, or is it always constant once it builds the L2ARC once?
L2ARC is currently cleared at boot. There is an RFE to make it persistent. /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
