Hitachi HUS154530VLF400 User Manual
Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
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• PER a Post Error bit, is set to one to indicate that the drive reports recovered errors.
• DTE (Data Terminate on Error) bit set to one specifies that data transfer will be halted when the first recovered error is
encountered. PER must be set to one when DTE is set to one. DTE set to zero will cause data transfer to continue
when recovered errors are encountered.
when recovered errors are encountered.
• DCR a Disable Correction bit, is set to one to indicate that Error Correction Code is not used for data error recovery. A
DCR bit of zero indicates that ECC is applied to recover the data.
• Read Retry Count sets a limit on the amount of DRP passes in which the Target attempts to recover read errors. A value
of zero disables all data recovery procedures. When AVERP bit (Mode Page 0 Byte 6 Bit 6) is zero, a value of non-
zero in Read Retry Count enables all steps of DRP. When AVERP bit is one, the number in Read Retry Count sets the
maximum retry count of DRP.
zero in Read Retry Count enables all steps of DRP. When AVERP bit is one, the number in Read Retry Count sets the
maximum retry count of DRP.
• Write Retry Count sets a limit on the amount of DRP passes in which the Target attempts to recover write errors. A
value of zero disables all data recovery procedures..
• Recovery Time Limit indicates the period in 1 millisecond increments for the maximum recovery time of a single LBA.
The value must be from 40 ms to 65535 ms (65.5 seconds). The granularity of the timer is 50 ms. If an LBA is not
able to be recovered within the limit, a Check Condition will be returned. The Recovery Time Limit will not be
applied yo Writes when WCE=1. A value of zero disables the timer.
able to be recovered within the limit, a Check Condition will be returned. The Recovery Time Limit will not be
applied yo Writes when WCE=1. A value of zero disables the timer.