running poudriere with 8 builders

Kurt Jaeger lists at opsec.eu
Sat Mar 4 11:57:39 UTC 2017


Hi!

> > Did you use ZFS as file system ?
> 
> When I did the disk setup, I was also thinking in ZFS, but this would have 
> reduced the netto disk space from 2* 280 GB to the half.

It does not have to be that way. Use only one disk for the system
and the second disk for a poudriere ZFS pool ?

> I have / for 
> all.the system and /usr/local for poudriere on the 2nd disk.

Use the same setup, but with ZFS.

I think, but have not checked it, that poudriere uses zfs clones,
which is ***way*** more efficient than copying the whole tree for
each poudriere builder jail.

> > SSD instead of spinning disks ?

> No. Seagate SAS disks.

3.5" or 2.5" ?

Putting the poudriere storage on a SSD might be very helpful.

This is my builder box (8 threads, Intel(R) Xeon(R) CPU E3-1230 V2 @ 3.30GHz,
32 GB RAM):

zpool list  
NAME    SIZE  ALLOC   FREE  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT
zroot   428G   216G   212G         -    47%    50%  1.00x  ONLINE  -
pou     232G  49.9G   182G         -    39%    21%  1.00x  ONLINE  -

/pou is on an Samsung SSD 840 EVO 250GB:

smartctl says:

  9 Power_On_Hours          0x0032   091   091   Always       -       41885
 12 Power_Cycle_Count       0x0032   099   099   Always       -       8
177 Wear_Leveling_Count     0x0013   083   083   Always       -       199

The Wear_Leveling_Count shows that it's probably beyond the spec already 8-}

-- 
pi at opsec.eu            +49 171 3101372                         3 years to go !


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