Bug 588134

Summary:	cciss raid rescan fails with: write error: Invalid argument
Product:	Red Hat Enterprise Linux 5	Reporter:	Juha Tuomala <tuju>
Component:	kernel	Assignee:	Red Hat Kernel Manager <kernel-mgr>
Status:	CLOSED NOTABUG	QA Contact:	Red Hat Kernel QE team <kernel-qe>
Severity:	medium	Docs Contact:
Priority:	low
Version:	5.4	CC:	christian.ekstam, cww, nospam13
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-01-18 15:27:47 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Juha Tuomala 2010-05-02 20:06:45 UTC

Description of problem:
After expanding a cciss hw raid array with new disks, the new disc size is visible in Linux, but the kernel doesn't update its understanding of physical volume size, not even triggered manually via cciss driver. 


Version-Release number of selected component (if applicable):
kernel-2.6.18-164.15.1.el5.centos.plus.x86_64


How reproducible:
Always.

Steps to Reproduce:
1. Expand cciss disks with hpacucli
2. echo "rescan" > /proc/drivers/cciss/cciss0
3. error is given
  
Actual results:
Cannot on-line pvresize the block device.

# echo "rescan" > /proc/driver/cciss/cciss0 
-bash: echo: write error: Invalid argument

Rebooting the system makes expanded disks visible.

Expected results:
working pvresize, lvextend, etc.

Additional info:
This is a centos 5 box. p800 controller.

Comment 1 Alexey Kurnosov 2010-09-27 15:24:47 UTC

Confirm this bug for Red Hat Enterprise Linux Server release 5.5 (Account #1292125).
2.6.18-194.8.1.el5 #1 SMP Wed Jun 23 10:52:51 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux.

Comment 2 Christian Ekstam 2011-10-28 08:38:29 UTC

Also confirmed on CentOS 5 2.6.18-194.26.1.el5 x86_64 Smart Array P400/Hardware Revision: Rev D/Firmware Version: 7.22. 
2.6.18-194.26.1.el5 #1 SMP Tue Nov 9 12:54:20 EST 2010 x86_64 x86_64 GNU/Linux

Comment 3 Chris Williams 2012-01-18 15:27:47 UTC

It has been some time since this BZ was updated and both customer cases are closed. If this is still an issue please open a case with Red Hat Support. Closing NOTABUG.

Comment 4 Juha Tuomala 2012-01-18 15:43:05 UTC

Which 'customer cases'? I've not opened any customer case about this nor any of such has been closed.

You claim that this is not a bug. Could you please elaborate that?