05-24-2017
Do it on a block level if you can.
Use zfs send / receive using netcat (the data stream is not encrypted over network).
It really versatile, poor man enterprise level file system replication, features matching expensive storage arrays.
For local stuff, mirror the pool and use zpool split.
If you are using SVM, mirror, remove from mirror, use the copy.
Using cp/rsync on large number of files is bound to take longer on same hardware.
Alternatively, you can use dd as well if you want entire disks, but it's a one time crude operation and long requires downtime on source.
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LEARN ABOUT OPENSOLARIS
metaparam
metaparam(1M) System Administration Commands metaparam(1M)
NAME
metaparam - modify parameters of metadevices
SYNOPSIS
/usr/sbin/metaparam -h
/usr/sbin/metaparam [-s setname]
[concat/stripe or RAID5 options] concat/stripe RAID
/usr/sbin/metaparam [-s setname] [mirror options] mirror
DESCRIPTION
The metaparam command is used to display or modify current parameters of metadevices.
If just the metadevice is specified as an argument to the metaparam command, the current settings are displayed.
The metaparam command enables most metadevice (volume) parameters to be changed. Only the interlace value cannot be changed by metaparam,
because it is established when the metadevice is created and cannot be changed thereafter.
OPTIONS
Root privileges are required for all of the options.
The following options are supported:
-h
Displays usage message.
-s setname
Specify the name of the diskset on which metaparam works. Using the -s option causes the command to perform its administrative function
within the specified diskset. Without this option, the command performs its function on local metadevices.
CONCAT
/STRIPE OR RAID5 OPTIONS
-hhot_spare_pool | none
Specifies the hot spare pool to be used by a metadevice. If none is specified, the metadevice is disassociated with the hot spare pool
assigned to it. If the metadevice is currently using a hot spare, then metaparam cannot replace the hot spare pool.
concat/stripe |RAID
Specifies the metadevice name of the concatenation, stripe, or concatenation of stripes, or of the RAID5 metadevice.
MIRROR OPTIONS
-r roundrobin | geometric | first
Modifies the read option for a mirror. The -r option must be followed by either roundrobin, geometric, or first. roundrobin, which is
the default action under the metainit command, specifies reading the disks in a round-robin (load balancing) method. geometric allows
for faster performance on sequential reads. first specifies reading only from the first submirror.
-w parallel | serial
Modifies the write option for a mirror. The -w option must be followed by either parallel or serial. parallel, the default action under
the metainit command, specifies that all writes are parallel. serial specifies that all writes are serial.
-p pass_number
A number from 0-to-9 that specifies the order in which a mirror is resynced during reboot. The default is 1. Smaller pass numbers are
resynced first. Equal pass numbers are run concurrently. If 0 is used, the mirror resync is skipped. 0 should only be used for mirrors
mounted as read-only, or as swap.
mirror
Specifies the metadevice name of the mirror.
EXAMPLES
Example 1 Associating Hot Spare Pool with RAID5 Metadevice
This example associates a hot spare pool, user_pool, with a RAID5 metadevice, user_raid.
# metaparam -h user_pool user_raid
Example 2 Changing Read Option to Geometric
This example changes the read option on a mirror d50 from the default of roundrobin to geometric.
# metaparam -r geometric d50
EXIT STATUS
The following exit values are returned:
0
Successful completion.
>0
An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWmdu |
+-----------------------------+-----------------------------+
|Interface Stability |Stable |
+-----------------------------+-----------------------------+
SEE ALSO
mdmonitord(1M), metaclear(1M), metadb(1M), metadetach(1M), metahs(1M), metainit(1M), metaoffline(1M), metaonline(1M), metarecover(1M),
metarename(1M), metareplace(1M), metaroot(1M), metaset(1M), metassist(1M), metastat(1M), metasync(1M), metattach(1M), md.tab(4), md.cf(4),
mddb.cf(4), md.tab(4), attributes(5), md(7D)
SunOS 5.11 26 Mar 2006 metaparam(1M)