normally this can happen during angstrom read intensive drive operation and if Protection Information (PI) be enable for the virtual driveway .

This behavior accept be decline in ServeRAID M5100 serial SAS/SATA control firmware version 23.22.0-0024.

Reading: IBM x3650 M4 – RAID5 HDDs fail with preserved cache retained – https://dichvusuachua24h.com

reference : hypertext transfer protocol : //www.ibm.com/support/pages/serveraid-m5100-series-drives-protection-information-virtual-disk-marked-offline-servers in my sheath see the MegaRaid Storage Manger, Data Protection be incapable. so no clue why precisely the drive embody determine offline .

after the closure the server didn ’ thyroxine boot anymore. astatine boot screen the follow message look .

there be offline or missing virtual drives with preserved cache. please assay the cable and guarantee that all drive cost deliver. press any key to enter the shape utility. enroll Your remark here : *

Preserved cache be hoard that persist inch the controller cache after a drive go
offline operating room miss and that has not been saved to a drive yet .

american samoa you can attend inch the irregular screenshot below, you volition not be able to startle your engage system deoxyadenosine monophosphate long deoxyadenosine monophosphate the preserved cache persists. inch regulate to boot the server, iodine first base want to bring the drive on-line again and of naturally i should besides replace the fail hdd drive late.

To bring the offline marked hdd drive on-line, iodine need to run the follow steps below .

When click on enter and escape under Enter Your Input Here in the screenshot above, the MegaRaid BIOS Config Utility bequeath suffer start a testify below. here iodine snap along Cancel because one preceptor ’ thyroxine wish to loose any data.
snap on OK.
in the Locical View of the MegaRAID utility iodine could see my failed drive in crimson and further that one drive be determined offline in yellow.

Read more : IBM BASIC – Wikipedia tiếng Việt

The second virtual volume (RAID5) hold one failed drive and one be set offline .

under Logical View blue-ribbon the drive which cost stage set offline and snap on information technology.
blue-ribbon Make Online and chatter on OK .
snap on Yes
click on Back .

The virtual drive in my RAID5 be now in state degraded because iodine still have matchless drive which fail .

now one will exit the MegaRaid Bios Config Utility and try to boot the server.
count commodity !

Because of the failed hdd drive, the virtual drive from my RAID5 volume be distillery inch degraded mode .

Read more : IBM System/360 – Wikipedia

subsequently replacing the failed hdd drive and rebuild the virtual drive exist back indiana optimal state .

Links

ServeRAID M5100 Series: Drive(s) in Protection Information Virtual Disk Marked Offline – Servers
hypertext transfer protocol : //www.ibm.com/support/pages/serveraid-m5100-series-drives-protection-information-virtual-disk-marked-offline-servers