on 2/1/2008 3:57 PM Dean Maluski spake the following:
I've googled this question without a great deal of information. Monday I'm rebuilding a Linux server at work. Instead of purchasing 3 drives for this system I purchased 4 with intent to create a hot spare. Here is my usual setup which I'll do again but with a hot spare for each partion. Create /dev/md0 mount point /boot RAID1 3 drives with 1 hot spare Create two more raid setups /dev/md1 mount point / RAID5 3 drives with 1 hot spare /dev/md2 mount point /home RAID5 3 drives with 1 hot spare Now do I create partions of equal size for each set then if I remember correctly when creation the RAID there is a check box for hot spare. Do I just marry the 3 equal partions, click the check box and assume the system will find the partition of equal size and use it when needed? Makes no sense to me. Of couse will be creating RAID0 swap but leaving that out of the question for obvious reasons.
Your raid0 swap will be a weak link if your system is swapping when the drive dies.