I am getting continuous failure of my server RAID 5 hard disk that happening in short time after buying brand new hard disk.
this is happenning for a lot DELL servers (PE2600, 2650, 2850, 2800), it became normal proctice for may organization to replace the hard disks.
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Move into Raid Controller bios (ctrl +c) Check other hard drives are visible. If yes, you may insert disk in other free slot and see if it detects on that slot. If same issue then particular hdd may be faulty. You have to replace it If no, turn off server, reset scsi and power cables. Turn on server and see if it detects hard drives. If server has same issue then either scsi cable or hdd back plane may be faulty. Chance is more for hdd back plane
Raid level 5 gives you some redundancy in your raid however it only allows you to lose one hard drive, two hdd lost would not permit to recover from. the parity bit can rebuild one hard drive but not two, sorry your raid might be lost
You would need 4 Hard disk drives in total. you would need to create 2 RAID 0 (striping) and then Mirror them (RAID 1). to elaborate, HDD A&B will be at RAID 0 as well as HDD C&D. after, you would have to Mirror your two RAID 0. (raid 0+1 is also known as raid 5)
if you are using raid go into the perc hardware utlity as it boots,try formating the drive there.maybe this will work.If you are using the dell open manage software you can probably format it there in windows.If you are not using raid enter the scsi utlity and do a format there.
I believe your HDD must be a SCSI disk whose drivers might have come along with the HDD.While installing XP it gives an option to install third party drivers for your HDD, Hopefully after that it would start detecting
Replace the hard drive with a drive that is the same type and the same size, or larger. It will rebuild itself.
By same type I mean that the connector on the back of the drive and the speed of the drive interface must be the same. If the new drive spins at a different rate it will not create a problem, except that if it is slower it will make read/writes slower. If it is larger it will only use part of its capacity, matching the capacity of the other drives.
Note that if you were to replace all drives with larger drives (one at a time) the capacity of the entire array would be the same as the original. If you want a larger array it must be built from the start with that larger capacity.
Take out the bad drive. If you can get the exact same drive, do it, otherwise look it up on the manufacturers web site to find out size and type.
While there are a few possible RAID configurations that you could be using on that server, the chances are overwhelming that it is RAID level 5 that you are using. This RAID level is tolerant of a single drive failure. If you lose another drive before your new drive rebuilds your data will be lost. Hopefully you have a backup.
RAID 5 stripes the data and the parity data across all available drives and when a drive fails, the missing data is rebuilt on the fly from the parity data. When a replacement drive is installed the parity data is used to rebuild the data that belongs on that drive. The advantages of RAID 5 are fault tolerance (of a single drive) and speed because each drive only has to provide or write its portion of the total data being accessed or written.
As of now you can
Select "F2" to accept data loss and re-enable logical drive. This Load OS Normally . It seems that one of the HDD in the RAID 5 has failed , Did you notice any LED indications like red or amber on the HDDs ?? if so get that hdd replaced . Make sure the Failed HDD is replaced . You can run the Array Diagnostic Utility from HP System tools to check the Failed Drives and also frimware version of the controller . If the frimware is not latest Update it from HP website. DL380 G4 should have Smart Array 6i controller .