[LU-11137] Enable ZFS compression on MDT by default - Whamcloud Community JIRA

Details

Type: Bug
Resolution: Incomplete
Priority: Minor
Fix Version/s: None
Affects Version/s: Lustre 2.12.0
Labels:
- DoM2

Severity:
3
Rank (Obsolete):
9223372036854775807

Description

We should enable data compression on ZFS MDT filesystems by default in mkfs.lustre for new MDTs. There is already ZFS compression for metadata enabled at all times, but with DoM we will also store data on the MDT.

Since the MDT will typically also be located on flash storage, from a cost and performance perspective it makes sense to compress the data that is stored there.

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Activity

[LU-11137] Enable ZFS compression on MDT by default

Andreas Dilger added a comment - 16/Jan/22 9:07 AM

This is probably something that should be decided by the admin. Unlike ldiskfs, it is possible to change ZFS configuration after installation, so enabling compression can be done at any time.

Andreas Dilger added a comment - 16/Jan/22 9:07 AM This is probably something that should be decided by the admin. Unlike ldiskfs, it is possible to change ZFS configuration after installation, so enabling compression can be done at any time.

Mikhail Pershin added a comment - 16/Jan/22 8:20 AM

Andreas, is this still worth to implement or outdated?

Mikhail Pershin added a comment - 16/Jan/22 8:20 AM Andreas, is this still worth to implement or outdated?

Andreas Dilger added a comment - 11/Jul/18 11:58 PM

It would be good to verify that this does not affect performance on the MDT significantly.

Andreas Dilger added a comment - 11/Jul/18 11:58 PM It would be good to verify that this does not affect performance on the MDT significantly.

People

Assignee:: Mikhail Pershin

Reporter:: Andreas Dilger

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Dates

Created:: 10/Jul/18 5:53 PM

Updated:: 16/Jan/22 9:07 AM

Resolved:: 16/Jan/22 9:07 AM