Is the new RAID implementation going to deprecate traditional stripes and mirrors?
Does all the new RAID MD support mean the standard LVM type of mirrors and stripes will go away or at least not be further developed?
Thank you.
Quoted 2 lines · ben
Does all the new RAID MD support mean the standard LVM type of mirrors and stripes will go away or at least not be further developed?
Current thinking:
Stripes remain as-is (they're very simple, it's not worth changing).
Preferred mirror switches to md, but existing mirror implementation remains available and continues to be used for temporary mirrors like pvmove.
Alasdair
Quoted 4 lines · Alasdair G Kergon
Quoted 2 lines · ben
Does all the new RAID MD support mean the standard LVM type of mirrors and stripes will go away or at least not be further developed?
Quoted 8 lines
Current thinking:
Stripes remain as-is (they're very simple, it's not worth changing).
Preferred mirror switches to md, but existing mirror implementation remains available and continues to be used for temporary mirrors like pvmove.
IOW, md is "best practice" for mirroring?
Signature · 4 lines
"There is usually only a limited amount of damage that can be done by dull or stupid people. For creating a truly monumental disaster, you need people with high IQs." Thomas Sowell
Quoted 7 lines · Ron Johnson
Quoted 6 lines · Alasdair G Kergon
Quoted 2 lines · ben
Does all the new RAID MD support mean the standard LVM type of mirrors and stripes will go away or at least not be further developed?
Current thinking:
Quoted 8 lines
Quoted 6 lines
Stripes remain as-is (they're very simple, it's not worth changing).
Preferred mirror switches to md, but existing mirror implementation remains available and continues to be used for temporary mirrors like pvmove.
IOW, md is "best practice" for mirroring?
I would say so. It has a number of improvements over the original that help it deal better with snapshots and transient failures.
You can make the "raid1" segment type the default type by setting 'mirror_segtype_default' in lvm.conf.
brassow