hard drives

In Ausable 309 on Friday we swapped drives between 157 and 158 to verify that the one in 158 was bad. It was. Strangely enough, when trying to boot 158 later, it gave an out of memory error in grub. I installed another copy of the OS, and grub was then happy. In Ausable 113, this morning 104 was showing hard drive problems. I fsck'ed it, and it boots now, but it probably needs to be reimaged.