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Bug #1063

Dell 'VSF' ide device degrades performance to the point of absurdity

Added by Jason King over 8 years ago. Updated over 8 years ago.

Status:
New
Priority:
Low
Assignee:
-
Category:
-
Start date:
2011-05-24
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage

Description

On a Dell PowerEdge 2850 system, I see a large number of errors like the following:

May 24 09:56:47 xxxx scsi: [ID 107833 kern.warning] WARNING: /pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0 (ata2):
May 24 09:56:47 xxxx timeout: abort request, target=1 lun=0
May 24 09:56:47 xxxx scsi: [ID 107833 kern.warning] WARNING: /pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0 (ata2):
May 24 09:56:47 xxxx timeout: abort device, target=1 lun=0
May 24 09:56:47 xxxx scsi: [ID 107833 kern.warning] WARNING: /pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0 (ata2):
May 24 09:56:47 xxxx timeout: reset target, target=1 lun=0
May 24 09:56:47 xxxx scsi: [ID 107833 kern.warning] WARNING: /pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0 (ata2):
May 24 09:56:47 xxxx timeout: reset bus, target=1 lun=0

Whenever they occur, they seem to effectively halt all other I/O on the system, and happen with enough frequency that the system takes over 40 minutes to boot!

Looking at /etc/path_to_inst, I see:
  1. grep '/pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0' /etc/path_to_inst
    "/pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0" 2 "ata"
    "/pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0/sd@0,0" 1 "sd"

iostat -E shows sd1 as:
sd1 Soft Errors: 0 Hard Errors: 0 Transport Errors: 2
Vendor: DELL Product: VSF Revision: 0123 Serial No:
Size: 0.00GB <0 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0

I am unsure what sort of device this is, but it would be nice to get the system to just ignore it (at minimum), so the system is usable.

History

#1

Updated by Jason King over 8 years ago

Doing a bit more digging, the VSF is apparently the DRAC virtual device (cdrom/floppy). Disabling it in the DRAC setup works around the issue, but it would be good if it actually worked in Illumos.

#2

Updated by Garrett D'Amore over 8 years ago

  • Priority changed from Normal to Low

The device is unlikely to be terribly useful, and furthermore if it doesn't behave like a real cdrom it will be difficult to fix. Furthermore, without sample hardware to work with, its unlikely that anyone who can work on it will.

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