[vserver] SSD/HD hybrids

From: Eugen Leitl <eugen_at_leitl.org>
Date: Thu 01 Apr 2010 - 10:32:16 BST
Message-ID: <20100401093216.GI1964@leitl.org>

Due to space limitations within the 5015A-PHF rackmounts and my
budget limitations I'm thinking about using an 80 GByte Intel
SSD along with a conventional 1-2 TByte SATA drive in a sensible
way for vserver production systems.

Linux doesn't have any native/production filesystems like zfs yet.
Presumably btrfs will be up to snuff sometime, but it is probably
years away from production still.

Presumably one could mount such a hybrid zfs an iSCSI device, but
that would waste the iSCSI host. Also, the GBit Ethernet would
be a bottleneck (at max 115 MByte/s throughput), so one would
have to use channel bonding and an additional network card.

So I'm thinking about how to use such a hybrid SSD/HD setup manually.
The obvious solutions would be to use the SSD for swap and for /tmp,
and HD for everything else.

Another idea is to get the whole (vhashified) servers to live
there, and mount /home from the conventional hard disk.

Any additional ideas?

Eugen* Leitl leitl http://leitl.org
ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org
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Received on Thu Apr 1 10:32:28 2010
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