single lvg is possible, just the concat seems not to work
PV, not LVG.
What disk block size does your disk2 report ? (diskutil info disk2). Is it the same as disk1?
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single lvg is possible, just the concat seems not to work
raattgift wrote:single lvg is possible, just the concat seems not to work
PV, not LVG.
What disk block size does your disk2 report ? (diskutil info disk2). Is it the same as disk1?
raattgift wrote:1) Physical Volume. PVs are described in "man diskutil".
2) It matters for 10.7. 10.8 and its updates have introduced many improvements to Core Storage. No they are not publicly documented in any useful detail.
Device Block Size: 512 Bytes
diskutil list
...
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 GB disk2
1: Apple_CoreStorage 1.0 GB disk2s1
/dev/disk3
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *2.0 GB disk3
1: Apple_CoreStorage 1.9 GB disk3s1
2: Apple_Boot Boot OS X 134.2 MB disk3s2
diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 457EEAA6-4A11-43FD-B8A9-1194D0BD21CA
=========================================================
Name: TestLVG
Status: Online
Size: 2887696384 B (2.9 GB)
Free Space: 2283700224 B (2.3 GB)
|
+-< Physical Volume 56FD29BC-DA91-4E55-818B-A72FB8547173
| ----------------------------------------------------
| Index: 0
| Disk: disk2s1
| Status: Online
| Size: 1019174912 B (1.0 GB)
|
+-< Physical Volume 3C45CE98-7233-4329-8994-F83BED6680B5
----------------------------------------------------
Index: 1
Disk: disk3s1
Status: Online
Size: 1868521472 B (1.9 GB)
diskutil coreStorage createVolume 457EEAA6-4A11-43FD-B8A9-1194D0BD21CA zfs test 100%
Error creating CoreStorage Logical Volume: The given file system is not supported on Core Storage (-69756)
grahamperrin wrote:raattgift wrote:… the composite disk is just a concatenation, though; except in one special case, writes will go to the first physical volume until that fills, then to the second physical volume. (the special case is if the first PV is a solid state disk and your particular kernel supports fusion drives; not all 10.8.2 or 10.8.3 kernels do).
That's most useful. Do we have authoritative references? …
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