[lustre-discuss] lfs doesn't like non-sequential ost indices
Andrus, Brian Contractor
bdandrus at nps.edu
Thu Oct 15 22:09:44 PDT 2015
Chris,
IIRC, that shows up because at some point during the uptime of your MDT/MGS that OST was in the mix. It registered and will stay there until you have completely restarted the filesystem.
I have had that in the past and my solution was to bring the system up EXCEPT for the OST that I didn't want/need listed, which, at the time, was on broken hardware.
Brian Andrus
ITACS/Research Computing
Naval Postgraduate School
Monterey, California
voice: 831-656-6238
-----Original Message-----
From: lustre-discuss [mailto:lustre-discuss-bounces at lists.lustre.org] On Behalf Of Chris Hunter
Sent: Thursday, October 15, 2015 3:02 PM
To: lustre-discuss at lists.lustre.org
Subject: [lustre-discuss] lfs doesn't like non-sequential ost indices
Hi,
This is a minor point. I am adding OSTs to a lustre 2.5 filesystem. I'm working with 2 OSS servers: srv1 & srv2. srv1 hosts ost indices 0,2,4,6,
srv2 hosts ost indices 1,3. We just added ost indices 4 & 6 and will add
5 & 7 later.
I ran lfs command on a client. I found "lfs osts" gave correct output (ie. ost index 5 not listed)
> # lfs osts
> OBDS::
> 0: testfs-OST0000_UUID ACTIVE
> 1: testfs-OST0001_UUID ACTIVE
> 2: testfs-OST0002_UUID ACTIVE
> 3: testfs-OST0003_UUID ACTIVE
> 4: testfs-OST0004_UUID ACTIVE
> 6: testfs-OST0006_UUID ACTIVE
However "lfs df" command gave an error about ost index 5 missing eg)
> # lfs df -h
> UUID bytes Used Available Use% Mounted on
> testfs-MDT0000_UUID 371.5G 77.8M 346.7G 0% /lustre/testfs/client[MDT:0]
> testfs-OST0000_UUID 14.2T 23.6M 13.5T 0% /lustre/testfs/client[OST:0]
> testfs-OST0001_UUID 14.2T 24.7M 13.5T 0% /lustre/testfs/client[OST:1]
> testfs-OST0002_UUID 14.2T 23.6M 13.5T 0% /lustre/testfs/client[OST:2]
> testfs-OST0003_UUID 14.2T 23.6M 13.5T 0% /lustre/testfs/client[OST:3]
> testfs-OST0004_UUID 14.2T 11.6M 14.1T 0% /lustre/testfs/client[OST:4]
> OST0005 : Resource temporarily unavailable
> testfs-OST0006_UUID 14.2T 11.6M 14.1T 0% /lustre/testfs/client[OST:6]
This appears to be a minor reporting issue.
chris hunter
chris.hunter at yale.edu
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