Hello Corey,
coreyfro@xxxxxxxxxxxx wrote:
From what I read earlier in the thread, you already have a swap partition on software RAID5, so how would going to RAID1 hurt performance.?Ahhhhhh... doesn't use the raidtab... nothing needs raidtab anymore... i guess its time i got with the program...
About swap failing, would there be much of a performence hit if i mirrored
swap?
With swap on RAID5 -- unless you are paging very heavily (enough for a full-stripe write) -- it seems you would go into Read-Modify-Write anyway and this will hurt ... badly.
Mirroring swap is a good idea to avoid crashes as Guy suggests.
If you are seriously considering the performance implications of RAID1 vs RAID5 for swap, you are already done for performance wise.
Personally I would not consider software RAID5 suitable for tasks which require performance. An exception would be for heavy I/O that causes full-stripe writes, in which case you would probably get a win out of the extra disks.
I hope this helps.
Kind Regards,
Nathan Dietsch - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
