RE: Why would anyone install Exchange on a PDC?

[Allen Crawford]

Title: RE: Why would anyone install Exchange on a PDC?

That is an incorrect point though.  If you have any decent, hot-swappable RAID controller/drives, it works exactly the same for RAID1 as it does for RAID5.  The comment you quoted was if you DIDN’T have hot-swappable drives.   -----Original Message----- From: MHR(Michael Ross) [mailto:[EMAIL PROTECTED]] Sent: Friday, February 22, 2002 12:54 PM To: MS-Exchange Admin Issues Subject: RE: Why would anyone install Exchange on a PDC?   Ok What you just said "You can also shut the server down, and restart with NO OS Changes and have it come back on-line. You can also shut down, replace the drive, and bring it back up if you don't have hot swap, and rebuild in the Controller BIOS, of bring it up to the OS and have the OS Utilities rebuild in background." If you have hot swap disks, as any good server should have, you don't have to do that with RAID 5. You do with RAID 1 That is my point. -----Original Message----- From: Dennis Atherton [mailto:[EMAIL PROTECTED]] Sent: Friday, February 22, 2002 11:50 AM To: MS-Exchange Admin Issues Subject: RE: Why would anyone install Exchange on a PDC?   The whole point depends on the way the tasks are done.   If the RAID 1 (Mirror) is done in hardware, it is the same as a hardware RAID 5 - on the controllers that I have used. <<<<< Adaptec 7800 RAID; Compaq 221,2DH, 3200 4200, 5200 and others; Promise IDE Raid SX6000, TX100, and motherboard integrated >>>>> Even the Promise IDE RAID Controllers can suffer a failed drive in a mirror, and not have any downtime. The drive is marked as down, and you can hot swap with another, and have it rebuild in the background. You can also shut the server down, and restart with NO OS Changes and have it come back on-line. You can also shut down, replace the drive, and bring it back up if you don't have hot swap, and rebuild in the Controller BIOS, of bring it up to the OS and have the OS Utilities rebuild in background. The above works on RAID 5 and RAID 1 on the Promise controllers that support both.   Dennis   List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm