I have an external Promise RM8000 array here. This has 8 bays for IDE hard drives. It has an Ultra-SCSI connector so one can connect it to just about anything. The whole array looks like a single drive.
Here's my problem: I have an 8x 160GB RAID array (6x160GB = 960GB, one disk for parity and another for hot-spare). Since the array emulates a single SCSI device, the host OS sees it as a single 960GB (!) hard disk. Here's the problem: when labeling the "disk" you have to assign a certain C/H/S. With a drive that large, the Promise would do something like C = 125320 H = 255 S = 63 (that's 125320 cylinders, 255 heads, 63 sectors/track, 512 bytes/sector) I'm not sure if Linux can handle that many cylinders!! definitely Solaris 8 doesn't like >27 heads or >255 sectors/track. Bottom line: I can't squeeze the full capacity out of the array because the OS don't support it! help! :P --- Orlando Andico <[EMAIL PROTECTED]> Mosaic Communications, Inc. _ Philippine Linux Users Group. Web site and archives at http://plug.linux.org.ph To leave: send "unsubscribe" in the body to [EMAIL PROTECTED] Fully Searchable Archives With Friendly Web Interface at http://marc.free.net.ph To subscribe to the Linux Newbies' List: send "subscribe" in the body to [EMAIL PROTECTED]
