132
Figure 5.11.23
Here are more details about these two methods for setup the replication job at the first
time.
Method 1:
Skip full copy of replication job for a new, clean virtual disk.
For a new created virtual disk which has not been accessed, the subsystem will recognized
it and skip full copy automatically when the replication job is created on this virtual disk at
the first time.
Tips
Any IO access to the new created virtual disk will make it as “not clean” by
the subsystem, even though executing
“Erase”
function when a virtual disk
is created. The full copy will take place in such a case.
Method 2:
Use
“VD Clone”
function to finish full copy at the first time.
For a new replication job created on an existing virtual disk with data stored. A full copy is
necessary to synchronize the volume image between the source and target virtual disks. It
usually takes a long time to synchronize the data especially when the replication job is
running over WAN with limited bandwidth. Now
QSAN
provides an efficient way to let
user execute full copy by
“VD Clone”
, which is a local data copy between source and
target virtual disk. Then move the physical drives with the target virtual disk to the target
subsystem and turn the cloning job into replication with differential copy afterward. With
this solution, user can save a lot of time for full copy at the first time. The followings are
the steps:
1.
Create a cloning job on an existing virtual disk with data stored already.
Содержание P300H61
Страница 27: ...27 Figure 2 5 2 The following topology is the connections for console and UPS optional Figure 2 5 3 ...
Страница 79: ...79 ...
Страница 110: ...110 Figure 5 7 1 2 ...
Страница 145: ...145 This form can be got from QSAN ftp ftp ftp qsan com tw QSAN_Support_Form doc ...
Страница 148: ...148 Figure B 1 3 Click Done Figure B 2 Figure B 3 ...
Страница 151: ...151 Figure B 8 Figure B 9 15 Click Add 16 Click Advanced ...
Страница 153: ...153 Figure B 14 22 Done the iSCSI device disconnect successfully ...
Страница 154: ...154 System information P300H61 P300H71 SW version 2 0 1 ...
