Memory, Internal Storage, Internal Disk Drives

AlphaServer DS20 Pedestal–Rackmount Windows NT

Step 3—Memory

System supports up to four memory kits (each kit includes 4 industry-standard ECC DIMMs).

System includes one memory kit.

System supports three additional memory kits for a system maximum of 2 GB memory.

MS340-BA	128 MB(4 x 32 MB DIMMs) memory kit
MS340-CA	256 MB(4 x 64 MB DIMMs) memory kit
MS340-DA	512 MB(4 x 128 MB DIMMs) memory kit

Step 4—Internal Storage

Pedestal Enclosure supports a total of ten storage devices:

One dedicated diskette drive slot (1.44 MB diskette drive included).

One 5.25” removable media slot (600 MB 32X CD-ROM included).

One 5.25” additional removable media slot.

Seven 3.5-inch internal hard disk drive slots.

Step 4a—Internal Disk Drives

Selection of one System Disk Drive is mandatory.

Up to six additional hard disk drives are supported in internal storage disk shelf.

Note: Internal storage disk shelf is configured in single-bus mode. To configure internal storage disk shelf in split-bus mode one additional SCSI port and an H8253-AA UltraSCSI bus splitter kit are required.

DS-RZ1CF-VW	4.3 GB 7200 RPM 16-bit UltraSCSI disk drive
DS-RZ1DF-VW1	9.0 GB 7200 RPM 16-bit UltraSCSI disk drive
DS-RZ1EF-VW2	18.0 GB 7200 RPM 16-bit UltraSCSI disk drive

1.KZPAC RAID Array 230/Plus Controller supports 9 GB Drives – for configuration information on the 32GB Logical Drive Limit of the KZPAC, see the Systems and Option Catalog file for Storage RAID Controllers http://webir.das.dec.com/info/CU5911/CU5911HM.HTM

2.18.2 GB disk drives are not supported on KZPAC-xx RAID controllers.

Internal UltraSCSI Cable Kit

H8253-AA	UltraSCSI bus splitter kit includes SCSI bus repeater card, two data cables, Y power cable harness,
	and SCSI active terminator assembly, and installation guide. Required to configure internal storage
	shelf in split bus mode.

Internal Removable Media Devices

Systems include CD-ROM drive in 5.25” half-height removable media slot. Systems support one additional 5.25” half-height removable media device.

RRD47-VD	600 MB 32X CD-ROM drive (RRD47) 5.25” Top Gun Blue
TLZ10-LK	12/24 GB 4 mm DAT SCSI tape drive (TLZ10) 5.25” Frost White

2.4Alpha Servers