Flash Cache劣化
環境
- Data ONTAP 7-mode
問題
- Flash Cacheが劣化しました そして EMSログレポートには以下のアラートが記録されています：
[NodeName: fmm_main: fmm.threshold.bank.offline:debug]: Flash Cache in slot 3: Percentage of failed flash LUNs in flash bank at 3/3/7 (slot/channel/bank) exceeded the critical threshold. The flash bank will be taken offline.
[NodeName: fmm_main: fmm.threshold.card.degraded:debug]: Flash Cache in slot 3 (model name X1971A-R5, serial number XXXXXXXXX, part number 111-00708): A percentage of flash device is offline that exceeds the warning threshold. The flash device needs to be repaired or replaced.
[NodeName: fmm_main: callhome.flash.cache.degraded:debug]: Call home for Flash Cache DEGRADED
FMM-DATAログによると、Flash Cache はオフラインです
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SUMMARY INFORMATION :
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Summary information for slot: 3
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Board Assembly Number: 111-00708
Status of the card: degraded
(Address: slot/channel/bank/lane)
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Address | Bad_blocks | Deg_blocks | Avg_erases_per_blk | Status
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3/3/0/0 | 6 | 0 | 63 | offline_failed
3/3/0/1 | 18 | 0 | 63 | offline_failed