On Tue, Jan 18, 2011 at 07:07:50AM -0800, Richard Elling wrote: > > I'd expect more than 105290K/s on a sequential read as a peak for a single > > drive, let alone a striped set. The system has a relatively decent CPU, > > however only 2GB memory, do you think increasing this to 4GB would > > noticeably affect performance of my zpool? The memory is only DDR1. > > 2GB or 4GB of RAM + dedup is a recipe for pain. Do yourself a favor, turn off > dedup > and enable compression.
Assuming 4x 3 TByte drives and 8 GByte RAM, and a lowly dual-core 1.3 GHZ AMD Neo, should I do the same? Or should I even not bother with compression? The data set is a lot of scanned documents, already compressed (TIF and PDF). I presume the incidence of identical blocks will be very low under such circumstances. Oh, and with 4x 3 TByte SATA mirrored pool is pretty much without alternative, right? -- Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
