Bug 481579
Summary: | fsc is no longer available for nfs mount points after upgrading from nfs-utils-1.0.9-35z.el5_2 to nfs-utils-1.0.9-40.el5. | ||
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Product: | Red Hat Enterprise Linux 5 | Reporter: | Mark London <mrl> |
Component: | nfs-utils | Assignee: | Steve Dickson <steved> |
Status: | CLOSED NOTABUG | QA Contact: | Martin Jenner <mjenner> |
Severity: | high | Docs Contact: | |
Priority: | low | ||
Version: | 5.3 | CC: | matthias |
Target Milestone: | rc | ||
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2009-02-13 18:43:10 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
Mark London
2009-01-26 15:18:14 UTC
Correction, the fsc option is no longer available for nfs for any version, not just v3. We just tried it for v4 and the mount command also does not recognize it: [root@cmodws09 ~]# mkdir /foo [root@cmodws09 ~]# mount -o fsc -t nfs4 test:/ /foo unknown nfs mount option: fsc [root@cmodws09 ~]# mount -o fsc test:/ /foo Unsupported nfs mount option: fsc Can I get someone to respond to this reported problem? Thanks! - Mark Sorry for the delay.... FS-Cache was technology preview, which meant we were not going to guarantee any support and had the right to disable it at anytime. Since the technology never was accepted into the Linux mainline kernel (what we refer to as upstream), it was decided to disable the technology in the RHEL 5.3 release. That's the bad news... The good news is there is a very good chance FS-Cache technology will be accepted in mainline kernel very soon. Which means there is a good chance the technology will reappear in RHEL 6 The latest code release can be found on the 'linux-mm' branch upstream NFS maintainter's git tree which can be found at: git://git.linux-nfs.org/pub/linux/nfs-2.6.git Thanks for the info! - Mark Just for the sake of completeness : It's not the userspace tools which no longer permit using the option, it's apparently the RHEL 5.3 kernel (2.6.18-128.el5+) which no longer supports the feature. Too bad, really. |