On Fri, 22 Jun 2007, [EMAIL PROTECTED] wrote: >> on RAID5 volumes. I pointed out that his high performance database had >> been running on a RAID5 (hardware implementation over Fibre Channel) >> volume set for 6 months. > > With a lot of NVRAM in the storage cabinet? ;)
2Gb NVRAM (battery backed) in my array controllers.... The RAID controllers themselves are high performance and there are 42 SATA/SAS disks attached to them (ie: no disk/bus contention, which is a performance problem with scsi-based controllers) Most of the problems seen with RAID5 (especially in software) are due to the implementation methods used. It's impossible to achieve high performance if all the RAID disks are on 1 or 2 (or even 3 or 4) scsi chains ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
