Re: ZFS tuning

2021-02-20 Thread Paul Gilmartin
On Sat, 20 Feb 2021 18:32:06 +, Colin Paice wrote:
>
>Can I get zFS to cache directories or hot files in memory?   There are lots
>of stats from ZFS, but it is hard to find the important numbers in the data.
>
That's typical of UNIX filesystems.  And the kernel does everything -- no
problems arising from inconsistent DEBs in user address spaces.  But
problematic in a shared or client-server environment.  Search for
SOLARIS NFS CLIENT CACHE
... and be aghast.  It doesn't simply work.  Better left to a caching
disk controller.

>Ive moved ZFS into OMVS
>,
>but it makes no significant difference.

-- gil

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ZFS tuning

2021-02-20 Thread Colin Paice
Are there any good guides for tuning ZFS?  I've found some guides from 8
years ago - are they still valid?

Can I get zFS to cache directories or hot files in memory?   There are lots
of stats from ZFS, but it is hard to find the important numbers in the data.

Ive moved ZFS into OMVS
,
but it makes no significant difference.

Colin

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