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I/O barriers and LVM

I/O barriers and LVM

Posted Apr 1, 2009 13:40 UTC (Wed) by quotemstr (subscriber, #45331)
In reply to: I/O barriers and LVM by TRS-80
Parent article: That massive filesystem thread

Nifty; thanks. This change alone is making me consider using a kernel.org kernel, something I haven't done in years.


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I/O barriers and LVM

Posted Apr 1, 2009 19:03 UTC (Wed) by sbergman27 (guest, #10767) [Link]

"""
This change alone is making me consider using a kernel.org kernel, something I haven't done in years.
"""

Are you saying that distro kernels already do this? If so, I'm not suggesting that you are wrong. Just interested in more info.

I/O barriers and LVM

Posted Apr 1, 2009 19:08 UTC (Wed) by quotemstr (subscriber, #45331) [Link]

No, they don't do this. LVM's lack of barrier support has resulted in my not using LVM in some circumstances. If kernel.org kernels grow LVM barrier support and are otherwise stable, it might be worth using them until distribution kernels are updated to include the functionality.


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