IBM 704 manual Considerations

Installing Internal Drives

Considerations

ŸYour PC Server 704 comes with one SCSI CD-ROM drive and one 3.5-inch, 1.44 MB diskette drive.

ŸThe upper-left front bays support half-high, removable-media drives.

Notes:

1.Installing hard disk drives in the upper-left front bays is not recommended. The hard disk drives generate EMI. In addition, hard disk drives in these bays are more susceptible to ESD.

2.The server's EMI integrity and cooling are both protected by having the upper-left front bays covered or occupied. When you install a drive, save the filler panel and EMI shield from the bay, in case you later remove the drive and do not replace it with another.

ŸYou cannot install hot-swap drives in the upper-left front bays.

ŸYour server supports twelve 3.5-inch, half-high, hot-swap hard disk drives in the hot-swap bays. When you install drives in these bays, install the first drive in the top left bay and proceed with a left-to-right, top-to-bottom pattern.

ŸThe hot-swap bays connect to two SCSI backplanes. The backplanes are the printed circuit boards behind the bays. Each backplane supports up to six hard disk drives.

ŸIf you want to upgrade your server by installing a PCI RAID adapter, an 8-bit SCSI cable (the PC Server 4-Drop SCSI Cable) is available as an optional feature.

If you upgrade your server and you want to install 16-bit devices, you might need a 16-bit cable. To order cables, contact your IBM reseller or IBM marketing representative.

Note: Before you remove a hard disk drive, back up all data.

158PC Server 704 User's Handbook