[lustre-discuss] No soace left on device Error

[Scott Wood]

Last time we had full OSTs that didn't look full it was due to running out of inodes because of a user who had tens of millions of files, all with a high stripe count. So "lfs df" reported heaps of space but "lfs df -i" showed the full devices. Might be worth a look.

Scott
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From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Dilip Sathaye via lustre-discuss <lustre-discuss at lists.lustre.org>
Sent: Friday, 8 October 2021 2:03 AM
To: lustre-discuss at lists.lustre.org <lustre-discuss at lists.lustre.org>
Subject: [lustre-discuss] No soace left on device Error

Dear All,
We are running lustre 2.7.x  in our cluster, which was running stable for few years. Suddenly a bug got triggered and basic copy command also fails with message like no space left on device.
We were told to upgrade to lustre 2.10.  Could we know:

1. If there is any simpler work around available, as we want to avoid upgrade. Upgrade can be complex process.

2. If upgrade is unavoidable, what is way to move from 2.7.x to 2.10 ?

Thanks
Dilip G Sathayr
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