Hi All,

I am facing the issue of slowness of my Seagate 1 TB hardisk. Normally system is working fine, when doing normal task in /dev/sda1. But after running the Virtualbox and machines, it get slow and get struck sometime (/dev/sda6). This is a new hard disk i have check with system RescueCD, there is no bad sector on the disk. The disk is reported healthy and fine with some non-contigious files. I ran the file system check. But still problem exists. Even smartctl does not reported any issue.

System Detail:

Linux mint 17
Kernel: Galaxy ~ # uname -a
Linux Galaxy 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

I am getting the below log:

Galaxy kernel: [ 178.478514] ata6: lost interrupt (Status 0x50)
Jun 13 21:44:09 Galaxy kernel: [ 178.478545] ata6.00: limiting speed to UDMA/66:PIO4
Jun 13 21:44:09 Galaxy kernel: [ 178.478552] ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
Jun 13 21:44:09 Galaxy kernel: [ 178.478620] ata6.00: failed command: READ DMA
Jun 13 21:44:09 Galaxy kernel: [ 178.478666] ata6.00: cmd c8/00:e0:d8:1e:4b/00:00:00:00:00/e0 tag 0 dma 114688 in
Jun 13 21:44:09 Galaxy kernel: [ 178.478666] res 40/00:00:00:4f:c2/00:00:00:00:00/40 Emask 0x4 (timeout)
Jun 13 21:44:09 Galaxy kernel: [ 178.478788] ata6.00: status: { DRDY }
Jun 13 21:44:09 Galaxy kernel: [ 178.478847] ata6: soft resetting link
Jun 13 21:44:09 Galaxy kernel: [ 178.675110] ata6.00: configured for UDMA/66
Jun 13 21:44:09 Galaxy kernel: [ 178.675124] ata6.00: device reported invalid CHS sector 0
Jun 13 21:44:09 Galaxy kernel: [ 178.675141] ata6: EH complete


Can you help to figure out the problem. Do you need any other further information.

The problem is most likely in Virtualbox, not the hardware.

--------------------
Steve Stites

You may want to check partitions alignment.

Thanks to respond jailbait & Emerson. Will you help to resolve the issue. How can i check the disk alignmenment and where is the problem with Virtualbox.
Should i use other virtualization software?

System hardware detail:

Motherboard: Gigabyte 75LMT
CPU: AMD 6300FX
RAM: 16 GB
HDD: Seargate: 1 TB Barracuda
CDROM: LG-MDISC

I have found at boot prompt my system waits a long "verifying DMA Pool Data".
-----------------------------------------------------------------------------
Partition Table :

Galaxy ~ # fdisk -l

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00021f52

Device Boot Start End Blocks Id System
/dev/sda1 * 2048 97656344 48827148+ 83 Linux
/dev/sda2 97658878 1953523711 927932417 5 Extended
Partition 2 does not start on physical sector boundary.
/dev/sda5 97658880 109375487 5858304 82 Linux swap / Solaris
/dev/sda6 109377536 1085937663 488280064 83 Linux
/dev/sda7 1085939712 1953523711 433792000 83 Linux
Galaxy ~ #

I am getting below message in /var/log/syslog after some minutes regularly. During this message system non responsive while doing simple console command usage with no CPU or I/O load (no virtualbox).

Jun 14 07:35:36 Galaxy kernel: [ 3542.163193] ata6: lost interrupt (Status 0x50)
Jun 14 07:35:36 Galaxy kernel: [ 3542.163225] ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
Jun 14 07:35:36 Galaxy kernel: [ 3542.163232] ata6.00: failed command: READ DMA EXT
Jun 14 07:35:36 Galaxy kernel: [ 3542.163243] ata6.00: cmd 25/00:00:00:7c:01/00:01:43:00:00/e0 tag 0 dma 131072 in
Jun 14 07:35:36 Galaxy kernel: [ 3542.163243] res 40/00:00:00:4f:c2/00:00:00:00:00/40 Emask 0x4 (timeout)
Jun 14 07:35:36 Galaxy kernel: [ 3542.163248] ata6.00: status: { DRDY }
Jun 14 07:35:36 Galaxy kernel: [ 3542.163277] ata6: soft resetting link
Jun 14 07:35:36 Galaxy kernel: [ 3542.367582] ata6.00: configured for UDMA/33
Jun 14 07:35:36 Galaxy kernel: [ 3542.367599] ata6.00: device reported invalid CHS sector 0
Jun 14 07:35:36 Galaxy kernel: [ 3542.367615] ata6: EH complete
Galaxy ~ #

Hi All,

Will you help me to solve the problem or to jump to the conclusion that hard drive is faulty. So,
that I can go for replacement. Please respond, if you have any query. Due to this issue, I am struck with my important assignments.

Did you run smartctl test on it?

I have run smartctl, but found nothing abnormal. Please tell me the command of smartctl with specific parameters, so that I can provide the command output.

It will tell you how long to wait until you get the results.

I have run the extended check on the disk. Please check the attachment.

Attached Files

Extended Check.txt (6.0 KB, 28 views)

I do not see anything alarming with your drive. Hardware ECC Recovered is a little high, but it is not considered critical.

1 members found this post helpful.

Is it fine with my current disk and check other hardware in the box or Should I go for hard disk replacement.

Please suggest.