Re: Software RAID: on same IDE port or on different ones?

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



on 10/18/2007 7:57 AM Kai Schaetzl spake the following:
I have a general question on software RAID performance. If using two IDE disks on RAID 1: is there much of a difference performancewise if I put both on one IDE port as master and slave or should I better put them on seperate ports. I remember from olde days that it was recommended to put CD and hard disk on different ports to maximize the throughput between them and as RAID1 is theoretically writing to both disks at the same time I guess putting them on different ports might be an advantage. Is it one or is it negligible?

Kai

The speed issue is not the problem. The problem is that if one disk dies while the system is running, it usually locks up the ide channel until a reboot, so the other drive would also be locked. That sort of kills one of the reasons for raid. You can pick up PCI IDE cards cheap, put the drives on their own ports.

--
MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos

[Index of Archives]     [CentOS]     [CentOS Announce]     [CentOS Development]     [CentOS ARM Devel]     [CentOS Docs]     [CentOS Virtualization]     [Carrier Grade Linux]     [Linux Media]     [Asterisk]     [DCCP]     [Netdev]     [Xorg]     [Linux USB]
  Powered by Linux