lvm stripe unit size

[XiongYe]

I wonder that whether the lvm (Veritas) stripe unit size(64 k default) is the max io size (MAXPHYS)

[Jaimin Parikh]

Hi,

MAXPHYS and lvm strip unit size are different.

MAXPHYS - A single read or write operation up to MAXPHYS bytes (typically 64 Kbytes or 256 Kbytes) results in exactly one disk operation. Requests larger than this are broken up automatically by the operating system.

lvm stripe unit zise - The logical volume's stripe size identifies the size of each of the blocks of data that make up the stripe. You can set the stripe size to four, eight, 16, 32, or 64 kilobytes (KB) (the default is eight KB).

Hope it is helpful to you.

Regards,
Jaimin H. Parikh