Re: [lustre-discuss] Kernel/OS/Lustre version matching

2020-12-11 Thread Andreas Dilger
Note also that 2.12.6 was just released and it shows the EL8.2
kernel in the ChangeLog, among many others:

https://git.whamcloud.com/?p=fs/lustre-release.git;a=blob;f=lustre/ChangeLog;h=beefe94e2199eaa571f7a796c8219384fa8364c0;hb=refs/heads/b2_12

 4.18.0-147.3.1.el8   (RHEL8.1)
 4.18.0-193.6.3.el8   (RHEL8.2)
 4.18.0-240.1.1.el8   (RHEL8.3)

Since the same client code has to build on a wide range of kernels, the
most straight forward answer is "if it builds it will work".

Cheers, Andreas

On Dec 11, 2020, at 06:00, Peter Jones  wrote:


The short answer is that it will likely work but has not been formally tested.

From: lustre-discuss  on behalf of 
Steve Brasier 
Date: Friday, December 11, 2020 at 2:41 AM
To: "lustre-discuss@lists.lustre.org" 
Subject: [lustre-discuss] Kernel/OS/Lustre version matching

Hi all, I hope I haven't missed something obvious in the docs here but I am 
confused about versions.

I'm trying to install the lustre client on a Centos 8.2 system with the 
4.18.0-193 kernel, which is an un-updated kernel.

The client install instructions at [1] say to look at the changelog [2] for the 
list of supported kernels. There, that kernel is only listed against the 
unreleased 2.14.0 version. However the Lustre Support Matrix at [3] shows RHEL 
8.2 as a client using 2.12.5. Does that mean 2.12.5 will work with the above 
kernel, or should I use another kernel with that OS version? If the former, how 
come it's not listed in the changelog?

On a related note the changelong only shows 2.x.0 versions - is kernel 
compatibility the same for all 2.x.y versions for the same x?

many thanks for any help
Steve

[1]: 
https://wiki.lustre.org/Installing_the_Lustre_Software#Lustre_Client_Software_Installation
[2]: 
https://git.whamcloud.com/?p=fs/lustre-release.git;a=blob_plain;f=lustre/ChangeLog
[3]: https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix


http://stackhpc.com/
Please note I work Tuesday to Friday.
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[lustre-discuss] Cannot move files to another directory

2020-12-11 Thread Lixin Liu
I tried to send this yesterday, but did not seem to get through. Try again now.

Hi,

We moved our MDT and MGT to a new storage device (DDN SFA200NV) this week. 
Everything
appears to work but there is a very strange problem. We could not "mv" a file 
to another directory.
This is for both old and new data. Here is an example:

$ mkdir testdir

$ dd if=/dev/zero of=testfile bs=1024k count=10
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.292493 s, 35.8 MB/s

$ cp testfile testdir/
$ mv testfile testdir/testfile.new
mv: cannot move 'testfile' to 'testdir/testfile.new': No such file or directory

$ chmod 666 testfile

$ ls -l
total 10244
drwxr-x--- 2 liu liu 4096 Dec 10 08:12 testdir
-rw-rw-rw- 1 liu liu 10485760 Dec 10 08:11 testfile

$ rm testfile
$

"mv" a file in the same directory works.

I have an open case with DDN about this issue, but would like to know if 
someone here
has any suggestions.

Thanks,

Lixin Liu
Simon Fraser University

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Re: [lustre-discuss] Kernel/OS/Lustre version matching

2020-12-11 Thread Peter Jones
The short answer is that it will likely work but has not been formally tested.

From: lustre-discuss  on behalf of 
Steve Brasier 
Date: Friday, December 11, 2020 at 2:41 AM
To: "lustre-discuss@lists.lustre.org" 
Subject: [lustre-discuss] Kernel/OS/Lustre version matching

Hi all, I hope I haven't missed something obvious in the docs here but I am 
confused about versions.

I'm trying to install the lustre client on a Centos 8.2 system with the 
4.18.0-193 kernel, which is an un-updated kernel.

The client install instructions at [1] say to look at the changelog [2] for the 
list of supported kernels. There, that kernel is only listed against the 
unreleased 2.14.0 version. However the Lustre Support Matrix at [3] shows RHEL 
8.2 as a client using 2.12.5. Does that mean 2.12.5 will work with the above 
kernel, or should I use another kernel with that OS version? If the former, how 
come it's not listed in the changelog?

On a related note the changelong only shows 2.x.0 versions - is kernel 
compatibility the same for all 2.x.y versions for the same x?

many thanks for any help
Steve

[1]: 
https://wiki.lustre.org/Installing_the_Lustre_Software#Lustre_Client_Software_Installation
[2]: 
https://git.whamcloud.com/?p=fs/lustre-release.git;a=blob_plain;f=lustre/ChangeLog
[3]: https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix


http://stackhpc.com/
Please note I work Tuesday to Friday.
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[lustre-discuss] Kernel/OS/Lustre version matching

2020-12-11 Thread Steve Brasier
Hi all, I hope I haven't missed something obvious in the docs here but I am
confused about versions.

I'm trying to install the lustre client on a Centos 8.2 system with the
4.18.0-193 kernel, which is an un-updated kernel.

The client install instructions at [1] say to look at the changelog [2] for
the list of supported kernels. There, that kernel is only listed against
the unreleased 2.14.0 version. However the Lustre Support Matrix at [3]
shows RHEL 8.2 as a client using 2.12.5. Does that mean 2.12.5 will work
with the above kernel, or should I use another kernel with that OS version?
If the former, how come it's not listed in the changelog?

On a related note the changelong only shows 2.x.0 versions - is kernel
compatibility the same for all 2.x.y versions for the same x?

many thanks for any help
Steve

[1]:
https://wiki.lustre.org/Installing_the_Lustre_Software#Lustre_Client_Software_Installation
[2]:
https://git.whamcloud.com/?p=fs/lustre-release.git;a=blob_plain;f=lustre/ChangeLog
[3]: https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix


http://stackhpc.com/
Please note I work Tuesday to Friday.
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