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30 Elite 23 Product Manual, Rev. A

[1] Setting these retry counts to a value below the default setting could result in degradation of the unrecov-

ered error rate below the product specification.

For example, suppose the read/write recovery page has the RC bit = 0, the read retry count set to 4, and

the recovery time limit set to 456. A four block read command can take up to 197 msec recovery time for

each block and a maximum of 456 msec recovery time for all four blocks. If either of these limits is reached

and a block has not yet been recovered, the command will end with CHECK CONDITION status and an

unrecoverable read error will be reported.

Table 4: Read and write retry count maximum recovery times

Read retry

count [1]

Maximum recovery time

per LBA (cumulative, msec)

Write retry

count [1]

Maximum recovery time

per LBA (cumulative, msec)

056 056

189 189

2 123 2 123

3 167 3 189

4 245 4 234

5 289 5 245

6 356 6 289

7 489 7 356

8 534 8 456

9 600 9 589

10 700 10 1256

11 900 11 2423

12 1178 12 (default) 3589

13 1845

14 3012

15 4178

16 (default) 4378

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 83 84

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Seagate Elite 9 Handbuch Seite 40