From: Marcelo Ricardo Leitner <marcelo.leitner@xxxxxxxxx>
On Tue, May 01, 2018 at 03:28:29PM -0400, m.roth@xxxxxxxxx wrote:
>> My manager's workstation is C 7.4, and it started screaming yesterday
>> about issues with ata5.
>
>> Except that he has one internal and one external drive, and a DVD. Anyone
>> have clues as to what could be causing this, or where to start looking?
> ata'5' is about the port it is connected and not related to the count
> of devices in there.
> You should be able to match it with:
> ls -l /sys/class/block | grep ata5
> There sould be a symlink like:
> lrwxrwxrwx. 1 root root 0 abr 29 19:23 sda ->
> ../../devices/pci0000:00/0000:00:1f.2/ata1/host0/target0:0:0/0:0:0:0/block/sda
> Or by going through boot dmesg.
Good thought... but no joy. I see links with sda, sda1, sdb, sdb1 and
sdb2, and four for dm-[0-3], and nothing else. Looking in that symlink, I
see
ll /sys/devices/pci0000\:00/0000\:00\:1f.2/ata5/
total 0
drwxr-xr-x. 6 root root 0 May 2 10:12 ./
drwxr-xr-x. 10 root root 0 May 2 10:11 ../
drwxr-xr-x. 3 root root 0 May 2 10:14 ata_port/
drwxr-xr-x. 4 root root 0 May 2 10:14 host4/
drwxr-xr-x. 5 root root 0 May 2 10:14 link5/
drwxr-xr-x. 2 root root 0 May 2 10:14 power/
-rw-r--r--. 1 root root 4096 May 2 10:14 uevent
$ ll /sys/devices/pci0000\:00/0000\:00\:1f.2/ata5/host4/
total 0
drwxr-xr-x. 4 root root 0 May 2 10:14 ./
drwxr-xr-x. 6 root root 0 May 2 10:12 ../
drwxr-xr-x. 2 root root 0 May 2 10:15 power/
drwxr-xr-x. 3 root root 0 May 2 10:15 scsi_host/
lrwxrwxrwx. 1 root root 0 May 1 17:59 subsystem ->
../../../../../bus/scsi/
-rw-r--r--. 1 root root 4096 May 2 10:15 uevent
Finally, I did
ll /sys/devices/pci0000\:00/0000\:00\:1f.2/ata5/host4/scsi_host/host4/
total 0
drwxr-xr-x. 3 root root 0 May 2 10:15 ./
drwxr-xr-x. 3 root root 0 May 2 10:15 ../
-rw-r--r--. 1 root root 4096 May 2 10:15 active_mode
-r--r--r--. 1 root root 4096 May 2 10:15 ahci_host_cap2
-r--r--r--. 1 root root 4096 May 2 10:15 ahci_host_caps
-r--r--r--. 1 root root 4096 May 2 10:15 ahci_host_version
-r--r--r--. 1 root root 4096 May 2 10:15 ahci_port_cmd
-r--r--r--. 1 root root 4096 May 2 10:15 can_queue
-r--r--r--. 1 root root 4096 May 2 10:15 cmd_per_lun
lrwxrwxrwx. 1 root root 0 May 2 10:15 device -> ../../../host4/
-rw-r--r--. 1 root root 4096 May 2 10:15 eh_deadline
-rw-r--r--. 1 root root 4096 May 2 10:15 em_buffer
-rw-r--r--. 1 root root 4096 May 2 10:15 em_message
-r--r--r--. 1 root root 4096 May 2 10:15 em_message_supported
-r--r--r--. 1 root root 4096 May 2 10:15 em_message_type
-r--r--r--. 1 root root 4096 May 2 10:15 host_busy
--w-------. 1 root root 4096 May 2 10:15 host_reset
-rw-r--r--. 1 root root 4096 May 1 18:00 link_power_management_policy
drwxr-xr-x. 2 root root 0 May 2 10:15 power/
-r--r--r--. 1 root root 4096 May 2 10:15 proc_name
-r--r--r--. 1 root root 4096 May 2 10:15 prot_capabilities
-r--r--r--. 1 root root 4096 May 2 10:15 prot_guard_type
--w-------. 1 root root 4096 May 2 10:15 scan
-r--r--r--. 1 root root 4096 May 2 10:15 sg_prot_tablesize
-r--r--r--. 1 root root 4096 May 2 10:15 sg_tablesize
-rw-r--r--. 1 root root 4096 May 2 10:15 state
lrwxrwxrwx. 1 root root 0 May 1 18:00 subsystem ->
../../../../../../../class/scsi_host/
-rw-r--r--. 1 root root 4096 May 2 10:15 supported_mode
-rw-r--r--. 1 root root 4096 May 2 10:15 uevent
-r--r--r--. 1 root root 4096 May 2 10:15 unchecked_isa_dma
-r--r--r--. 1 root root 4096 May 2 10:15 unique_id
-r--r--r--. 1 root root 4096 May 2 10:15 use_blk_mq
And nothing else. Note that the it's running 3.10.0-862.el7.x86_64.
Seems to have given up, for at least now, but could start flooding the
logs again....
mark
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