From: "Brian J. Murrell" <brian@interlinx.bc.ca>
To: linux-lvm@redhat.com
Subject: [linux-lvm] Is MD array (containing a PV) reducible?
Date: Mon, 02 Oct 2023 12:03:45 -0400 [thread overview]
Message-ID: <d667deb919722b147b4f78b3e00a6ce22a575f44.camel@interlinx.bc.ca> (raw)
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Hi.
Just hoping to get a sanity check here. I have a PV on an mdadm raid
array. the PV's size is:
PV Size 3.64 TiB / not usable 2.84 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 953829
Free PE 35813
Allocated PE 918016
The mdadm array's size is:
Array Size : 3,906,887,512 (3.64 TiB 4.00 TB)
Used Dev Size : 3,906,887,512 (3.64 TiB 4.00 TB)
I can shrink this array down to 3,906,886,464 without impacting the PV
(and it's contents) correct?
From my calculations there is 4,022,272 bytes of unused space after the
PV to the end of the array so shrinking it by 1,073,152 shouldn't have
any impact, correct?
Cheers,
b.
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next reply other threads:[~2023-10-02 16:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-02 16:03 Brian J. Murrell [this message]
2023-10-02 18:49 ` [linux-lvm] Is MD array (containing a PV) reducible? Phillip Susi
2023-10-02 19:21 ` Brian J. Murrell
2023-10-02 20:02 ` grumpy
2023-10-02 20:48 ` Phillip Susi
2023-10-02 22:50 ` Brian J. Murrell
2023-10-02 23:37 ` Phillip Susi
2023-10-03 22:23 ` Brian J. Murrell
2023-10-04 13:18 ` Phillip Susi
2023-10-04 17:59 ` Brian J. Murrell
2023-10-05 12:16 ` Phillip Susi
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