Storage
Updated June 16, 1997

Models DHEA-34330 and DHEA-36480


Command description

The following commands are supported by the drive.
Commands                     (Hex)
Check power mode                 (E5)
Check power mode*                (98)
Execute drive diagnostics        (90)
Flush cache                      (E7)
Format track                     (50)
Identify drive                   (EC)
Identify drive DMA               (EE)
Idle                             (E3)
Idle*                            (97)
Idle immediate                   (E1)
Idle immediate*                  (95)
Initialize drive parameters      (91)
Read buffer                      (E4)
Read DMA (retry)                 (C8)
Read DMA (no retry)              (C9)
Read long (retry)                (22)
Read long (no retry)             (23)
Read multiple                    (C4)
Read native max LBA/CYL          (F8)
Read sectors (retry)             (20)
Read sectors (no retry)          (21)
Read verify sectors (retry)      (40)
Read verify sectors (no retry)   (41)
Recalibrate                      (1X)
Seek                             (7X)
Set features                     (EF)
Set max LBA/CYL                  (F9)
Set multiple                     (C6)
Sleep                            (E6)
Sleep*                           (99)
Standby                          (E2)
Standby*                         (96)
Standby immediate                (EO)
Standby immediate*               (94)
Write buffer                     (E8)
Write DMA (retry)                (CA)
Write DMA (no retry)             (CB)
Write long (retry)               (32)
Write long (no retry)            (33)
Write multiple                   (C5)
Write sectors (retry)            (30)
Write sectors (no retry)         (31)

*Alternate command codes for previous defined commands.


Menu
Product highlights Mechanical data
Product description
Jumpers and configuration
Command descriptions
Electrical interface specification

[ Hard disk drive technical support home page | Storage home page ]
[ IBM home page | Order | Search | Contact IBM | Help | (C) | (TM) ]