Date: Wed, 10 Apr 2013 17:23:51 +0400 (MSK) From: Dmitry Morozovsky <marck@rinet.ru> To: freebsd-fs@FreeBSD.org Subject: ZFS-inly server and dedicated ZIL Message-ID: <alpine.BSF.2.00.1304101713530.38433@woozle.rinet.ru>
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Dear colleagues, I'm planning to make new PostgreSQL server using zaid10-like ZFS with two SSDs splitted into mirrored ZIL and striped arc2. However, it seems current ZFS implementation does not support this: ./lib/libzfs/common/libzfs_pool.c- case EDOM: ./lib/libzfs/common/libzfs_pool.c- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, ./lib/libzfs/common/libzfs_pool.c: "root pool can not have multiple vdevs" ./lib/libzfs/common/libzfs_pool.c- " or separate logs")); ./lib/libzfs/common/libzfs_pool.c- (void) zfs_error(hdl, EZFS_POOL_NOTSUP, msg); Am I right, or did I missed something obvious? Ok, if so: In this situation, I see two possibilities: - make system boot from internal USB stick (only /bootdisk with /boot and /rescue) with the rest of ZFS-on-root - use dedicated pair of disks for ZFS pool without ZIL for system. what would you recommend? Thanks! -- Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: marck@FreeBSD.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------
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