I have the HP ProLiant DL360 G5 server with the SmartArray P400i RAID controller. The server itself is pretty old, but it still works normally. The only issue is the RAID controller, which marks good drives as failed. It happens quite often, almost every day. Here is the typical output of
# ssacli ctrl all show config ... Array A (SATA, Unused Space: 0 MB) logicaldrive 1 (931.5 GB, RAID 1, Interim Recovery Mode) physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SATA HDD, 1 TB, OK) physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SATA HDD, 1 TB, Failed)
# ssacli ctrl slot=0 pd 1I:1:2 show detail Smart Array P400i in Slot 0 (Embedded) Array A physicaldrive 1I:1:2 Port: 1I Box: 1 Bay: 2 Status: Failed Last Failure Reason: Not ready bad sense Drive Type: Data Drive Interface Type: SATA Size: 1 TB Drive exposed to OS: False Logical/Physical Block Size: 512/512 Firmware Revision: SN03 Serial Number: ... WWID: ... Model: ATA ST91000640NS SATA NCQ Capable: True SATA NCQ Enabled: True PHY Count: 1 PHY Transfer Rate: 1.5Gbps Sanitize Erase Supported: False Shingled Magnetic Recording Support: None
After the server is rebooted, the RAID controller detects the drive again, marks it as an OK, and rebuilds the array. The array works well until the next failure. I have no idea about why this is happening. Are there any ways to solve this problem without buying the new RAID or HBA controller? SoftRAID is acceptable. Currently I see these options:
- Make a JBOD-like setup with two RAID 0 logical drives, each containing a single physical drive, but I don't know if it will help.
- Tune the RAID controller so I won't exclude failed drives from the array, but I don't know how to do this.