Search Postgresql Archives

Raid Controller Write Cache setting for WAL and Data

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello,

Is it safe, to have RAID controller (not BBC) write cache _enabled_
for disks where data are stored and write cache _disabled_ for disks
where WAL segments are stored?
I _can_ afford of loosing some data in case of power failure. But I'm
afraid of having database in unrecoverable state after crash.

fsync = on

I have 4 disks, 2 for WAL (RAID1) and 2 for data (RAID1). WAL and data
are on XFS partitions (nobarrier, noatime).

-- 
Piotr GasidÅo

-- 
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general



[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux