3PAR 快照设置

-exp <time>{d|D|h|H|m|M}
Specifies the relative time from the current time that volume will expire. <time> is a positive integer value
and in the range of 1 minute - 1825 days. Specify time using d or D for days, h or H for hours, and m or M
for minutes following the entered time value.

-retain <time>{d|D|h|H|m|M}
Specifies the amount of time, relative to the current time, that the system retains the volume. <time> is a
positive integer value in the range of 1 minute - 1825 days. Use d or D for days, h or H for hours, and m or
M for minutes following the entered time value.
If the volume is not in any domain, then its retention time cannot exceed the value of the
VVRetentionTimeMax on the system. The default value for the VVRetentionTimeMax is 14 days.
If the volume belongs to a domain, then its retention time cannot exceed the value of the
VVRetentionTimeMax of the domain, if set. ou cannot remove or reduce the retention time once it is
set. If the volume has its retention time set, you cannot remove the volume within its retention time. If you
have specified both expiration time and retention time, the retention time cannot be longer than the
expiration time.
This option requires the HPE 3PAR Virtual Lock license. Contact your local service provider for more
information.

保留时间内（retain ）对VV（快照可以看作VV)不能修改

到期后（exp）系统会自动清理过期的VV

所有的空间都占系统容量