0
votes
1answer
673 views

Linux software RAID60: Can I have global hot spare?

As far as I can see Linux has RAID6 and RAID0, but not RAID60. So RAID60 is emulated by creating RAID0 on top of some RAID6s. It is possible to add a hot spare to each of the RAID6s, but is it ...
2
votes
2answers
723 views

Using the spare drive in an HP Proliant DL380 G4

I have an HP Proliant DL380 G4 with a Smart Array 6i controller and 6 hard drives. 5 of the drives are configured as a RAID 5 array, and 1 is designated as a hot spare. The server has just given me a ...
0
votes
1answer
358 views

Why can't add a hot spare in freebsd? Can anybody help me fix it?

Why can't add a hot spare? # mfiutil add e1:s1 mfid0 mfiutil: Drive 1 is not available I found the reason is e1:s1 is marked online, it must be Marked as an unconfigured good drive, and to mark ...
5
votes
7answers
8k views

Raid 5 with hot spare or RAID 10 with no hot spare?

Yes, this is on of those "do my job for me" questions, have some pity:) I'm at the limit for what I can do with the number of hard drives in a server without spending a substantial amount of money. ...
3
votes
1answer
787 views

Using a global hot spare to protect arrays built with disks of different sizes?

I'm trying to put together a drive configuration. I've got a server with 2 x 146GB SAS drives, and am adding several 300 GB drives. Due to limitations on the number of drives I can put in this ...
7
votes
5answers
755 views

For a server that can tolerate downtime, is it better to use a hot spare or a cold spare?

In other words, should I leave a spare disk on the shelf or set it up as a hot spare? If the server has a little bit of downtime, it isn't the end of the world. It's not a webserver or anything that ...