Re: ZFS melting under postgres...

Ivan Voras <ivoras@xxxxxxxxxxx> writes:
These are all "normal" CompactFlash cards, for which the widely
available size seems to be 16 GB max, right?

So? That's more than enough for a ZFS intent log (as a rule of thumb,
the ZIL should be half the size of the server's RAM).

Did you (or anyone) deploy CF drives for production servers?

My router (and DNS, NTP and DHCP server) is a net4801 with a 1 GB CF
chip.

DES

Some folks are fond of having a fast boot disk with practically no latency
and no moving parts.

I run quite a few production servers on CF drives in a very large (12k+
servers) data center environment. In nearly every case, the CF card is the
systems root (/) partition and is always mounted read-only.

In some cases where we use CF, the systems also have a SAS/SATA disk for
maintenance. When needed, we can spin up the SAS/SATA disk. On that hard
drive, we keep a history of the CF card images and other maintenance items
like /usr/ports and /usr/src.

We use ATA CF adapters that I buy off eBay for $1.98 each. They ship
direct from Hong Kong and work great.
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