This not only made a disk fail, it brought the storage off for some time, causing a database crash.
>
> TASK AUTO-GENERATED by Nagios/Icinga RAID event handler
>
> A degraded RAID (hpssacli) [[ https://icinga.wikimedia.org/cgi-bin/icinga/extinfo.cgi?type=2&host=db1078&service=HP RAID | was detected ]] on host `db1078`. An automatic snapshot of the current RAID status is attached below.
>
> Please **sync with the service owner** to find the appropriate time window before actually replacing any failed hardware.
> ```
> CRITICAL: Slot 1: OK: 1I:1:1, 1I:1:2, 1I:1:3, 1I:1:5, 1I:1:6, 1I:1:7, 1I:1:8, 2I:2:1, 2I:2:2 - Failed: 1I:1:4 - Controller: OK - Battery/Capacitor: OK
>
> Smart Array P840 in Slot 1
>
> array A
>
> Logical Drive: 1
> Size: 3.6 TB
> Fault Tolerance: 1+0
> Heads: 255
> Sectors Per Track: 32
> Cylinders: 65535
> Strip Size: 256 KB
> Full Stripe Size: 1280 KB
> Status: Interim Recovery Mode
> MultiDomain Status: OK
> Caching: Disabled
> Unique Identifier: 600508B1001CB4212BB3DB66161C1F69
> Disk Name: /dev/sda
> Mount Points: / 37.3 GB Partition Number 2
> OS Status: LOCKED
> Logical Drive Label: 00892210PDNNF0ARH9O0QN7B82
> Mirror Group 1:
> physicaldrive 1I:1:1 (port 1I:box 1:bay 1, Solid State SATA, 800 GB, OK)
> physicaldrive 1I:1:2 (port 1I:box 1:bay 2, Solid State SATA, 800 GB, OK)
> physicaldrive 1I:1:3 (port 1I:box 1:bay 3, Solid State SATA, 800 GB, OK)
> physicaldrive 1I:1:4 (port 1I:box 1:bay 4, Solid State SATA, 800 GB, Failed)
> physicaldrive 1I:1:5 (port 1I:box 1:bay 5, Solid State SATA, 800 GB, OK)
> Mirror Group 2:
> physicaldrive 1I:1:6 (port 1I:box 1:bay 6, Solid State SATA, 800 GB, OK)
> physicaldrive 1I:1:7 (port 1I:box 1:bay 7, Solid State SATA, 800 GB, OK)
> physicaldrive 1I:1:8 (port 1I:box 1:bay 8, Solid State SATA, 800 GB, OK)
> physicaldrive 2I:2:1 (port 2I:box 2:bay 1, Solid State SATA, 800 GB, OK)
> physicaldrive 2I:2:2 (port 2I:box 2:bay 2, Solid State SATA, 800 GB, OK)
> Drive Type: Data
> LD Acceleration Method: HP SSD Smart Path
>
>
> ```