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Neostim

10mb/sec parity creation -- New User

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I'm on the trial of unRaid, I've got 6 data drives and 1 parity drive, all 2TB or 1TB in size, I'm seeing about 8-19MB/sec on parity creation, currently 2 days and 10 hours to finish.

I can't seem to cancel parity to try swapping in a different 2TB drive in case it's the drive, is there any way I could sanity check this drive in unraid to eliminate that as a possibility? SMART status isn't exactly working with my 3Ware 9650SE-24M8 so even if it was having issues I'm not sure I would know.

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Post your diagnostics so that the hdd gurus can check it out.

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Posted (edited)

Reading through this handy diagnostics file I see the following, maybe this is the cause of my issues, read errors on one of the data drives:

 

Apr 14 17:00:44 Tower kernel: 3w-9xxx: scsi5: ERROR: (0x03:0x0202): Drive ECC error:port=19.
Apr 14 17:00:44 Tower kernel: sd 5:0:7:0: [sdi] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
Apr 14 17:00:44 Tower kernel: sd 5:0:7:0: [sdi] tag#0 Sense Key : 0x3 [current] 
Apr 14 17:00:44 Tower kernel: sd 5:0:7:0: [sdi] tag#0 ASC=0x11 ASCQ=0x0 
Apr 14 17:00:44 Tower kernel: sd 5:0:7:0: [sdi] tag#0 CDB: opcode=0x28 28 00 02 a5 5e 40 00 01 00 00
Apr 14 17:00:44 Tower kernel: print_req_error: I/O error, dev sdi, sector 44392000
Apr 14 17:00:44 Tower kernel: md: disk6 read error, sector=44391936

 

I'll remove the drive from the array and try parity again to see if any improvements.

Edited by Neostim

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2 minutes ago, Neostim said:

I'll remove the drive from the array and try parity again to see if any improvements.

 

Maybe you know this but you will have to set a New Config to remove a drive from the array. Tools - New Config, Retain All, then unassign the disk to be removed. Don't check parity is valid, then start the array to begin parity sync.

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Thanks! That helped, I've dropped the "bad" disk from the array now, parity still at 8mb/sec currently :(

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2 hours ago, Neostim said:

Thanks! That helped, I've dropped the "bad" disk from the array now, parity still at 8mb/sec currently :(

 

Post new diagnostics, don't reboot.

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06:00.0 RAID bus controller [0104]: 3ware Inc 9650SE SATA-II RAID PCIe [13c1:1004] (rev 01)

 

This is not a recommended controller and I'm pretty sure other users also had very poor performance with it.

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