Deviations From Standard - IBM DTNA-22160 - Travelstar 2.1 GB Hard Drive Specifications

8.0 Deviations From Standard

BBK(Bad Block)
Check Power Mode
Write Verify
Standby Timer
| SMART Return Status SMART R E T U R N STATUS subcommand does not check advisory attributes.
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Copyright IBM Corp. 1997
Bit7 of Error Register is supported as BAD BLOCK bit. This bit will be set when
BAD BLOCK is reported on Read commands.
CHECK POWER MODE command returns F F h to Sector Count Register when
the device is in Idle mode. This command does not support 80h as the return value.
WRITE VERIFY command does not include read verification after write operation.
The function is exactly same as WRITE SECTORS command.
Even if IDLE command or STANDBY command is issued with Sector Cuont reg-
ister value 00h, Standby Timer is not disabled, but it sets default value 109 minutes.
In case Sector Count register value is other than 00h, Standby Timer is set to (Sector
Count register value) x 5 seconds.
That is, the device will not report threshold exceeded condition unless prefailure attri-
butes exceed their corresponding thresholds. For example, Power-On Hours Attribute
never results in negative reliability status.
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