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TimeFinder
(W2K)
Summary:
In
this lab exercise students will explore the configuration and basic setup of the
Symmetrix TimeFinder facility using the EMC
Solutions Enabler Command Line Interface (SYMCLI). Business Continuance
Volumes (BCVs) will be identified and associated with a SYMCLI Device Group of
type REGULAR. The contents of the Standard Volumes will be copied over to the
BCVs. After synchronization, the BCVs will be split from the Standard Volumes,
giving a point-in-time copy of the data. The
Standard and BCV volumes are Basic disk structures.
Objectives:
a)
Display and identify the configured BCVs.
b)
Create a SYMCLI device group of type REGULAR.
c)
Associate
BCVs with a SYMCLI device group.
d)
Synchronize the BCVs with the Standard Volumes belonging to the SYMCLI
device group.
e)
Monitor the status and synchronization of the BCVs
f)
Split the
BCVs from the Standard Volumes to obtain point-in-time copy of the data.
1.
Verify or setup your user environment for SYMCLI.
a)
Check to see if the directory for SYMCLI
executables is included in your PATH statement and if not set, you will need to
set it.
C:\>
PATH
Is the directory “\program
files\EMC\symcli\binaries”
included in the PATH? _________.
If not add \program
files\EMC\symcli\binaries to
your PATH. You can do this by using
the “advanced” tab after opening the “system” option in control panel
and selecting “Environmental Variables”.
b)
If you want verbose help pages for any SYMCLI
command, use the path \program files\EMC\symcli\man to find a “man” page for
each command. You can open the pages by using the “type” command.
2.
Initialize the SYMAPI Database.
(The
file \program files\EMC\symapi\config\symapi_db.bin will
be
created)
#
symcfg discover
3.
Identify the volumes accessible to your host.
This
and following TimeFinder exercises require two standard volumes, two BCV
volumes, and a gatekeeper device. In the output of the syminq
command, locate the devices assigned to you and complete the table below.
a)
List all the volumes available to your host.
#
syminq | more
b)
Identify the two standard volumes assigned to you,
and record the host device names (PdevName) and the Symmetrix device names (SymDevName).
Note: Standard Volumes are those
which do not have any description under the “Type” column in the output of
the syminq command.
Standard Volumes
|
PdevName
(\\.\PhysicadriveX)
|
SymDevName
(e.g. 031)
|
Device 1
|
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Device 2
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c)
Identify your gatekeeper device from the syminq
output above. While SYMCLI does not
require a dedicated gatekeeper device, it is recommended that a number of small
devices be defined as gatekeeper devices and associated with device groups.
Enter the information in the following table.
|
PdevName
|
SymDevName
(e.g. 031)
|
Gatekeeper 1
|
|
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d)
List the BCVs configured on the Symmetrix and
identify and record a pair of BCVs to be used in this exercise.
i)
Display
summary information about all BCVs in the attached Symmetrix.
#
symbcv list dev | more
ii)
Display summary information about all BCVs
accessible to your host.
#
symbcv list pd | more
iii)
Identify two BCV Volumes assigned to your backup
host, and record the host device names (PdevName), the Symmetrix device names (SymDevName),
attribute, and status in the table below.
BCVs
|
PdevName
|
SymDevName
(e.g. 03C)
|
Status
|
Device 1
|
|
|
|
Device 2
|
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4.
Create a device group, add standard devices and associate BCVs and
gatekeeper devices. The device group type should be of type REGULAR. In
the steps below replace “my”
with your initials in the device group name.
Your device group name: ________________
a)
Create a regular device group with the name mystddg
#
symdg -type REGULAR create mystddg
b)
Add the two standard devices to the device group.
Add the first device using its Physical Device Name (\\.\PhysicaldriveX),
and the second device using its Symmetrix Device Name (eg. 089).
#
symld -g mystddg add pd PdevName
# symld -g mystddg add dev SymDevName
Alternatively
you could use:
#
symld -g mystddg addall –range “low”:”high”
To
add all devices consecutively in a range.
c)
Define your gatekeeper device in the SYMAPI
database and associate it with your device group.
#
symgate define dev SymDevName
# symgate –g mystddg associate dev SymDevName
d)
Verify that the device group was added to the
SYMAPI database.
#
symdg list
e)
Show detailed information about your device group
and Record the Logical Device Names (LdevName) given to your two Standard
Volumes.
#
symdg show mystddg | more
Std. Volumes
|
PdevName
|
SymDevName
|
LdevName
|
Device 1
|
|
|
|
Device 2
|
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Where is the information about a device group and its members stored?
__________________________________________________
f)
Associate
your assigned BCVs, with the device group mystddg
#
symbcv -g mystddg associate dev SymDevName
# symbcv -g mystddg associate dev SymDevName
g)
Verify association and record the Logical Device
name given to your BCVs
#
symdg show mystddg | more
BCVs
|
PdevName
|
SymDevName
|
LdevName
|
Device 1
|
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|
Device 2
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h)
Set the variable that holds the value of your
default device group name. If this
variable is set, the device group name need not be specified in the command line
for subsequent steps. Note: Variables are case sensitive
# SET
SYMCLI_DG = mystddg
5.
Query the BCV devices in your device group. As
you have set the environment variable SYMCLI_DG, it is not necessary to specify the device group
with the –g flag.
#
symmir query
The
current state of your device pairs should be split. If not notify your
instructor
6.
Establish the pairing between the BCVs and the Standard Volumes. If this is
the first establish operation between the BCVs and the Standard Volumes, the “-full”
option must be specified. This is because, the default is an incremental
establish.
a)
Establish a BCV with each standard device in your
device group. Use the -full
and –exact options.
#
symmir establish -full -exact
b)
Query the status of the BCV devices. Obtain the
synchronization rate, estimated time to completion. The command below repeats
the query every 5 seconds, 10 times.
#
symmir query -i 5 –c 10
Synchronization rate:
_______________________
Estimated time to completion: _________________
BCV Device Status: _________________________
7.
Split the BCVs.
A BCV must, by default, be fully synchronized before it can be split.
a)
Before
synchronization is complete,
attempt to split the BCV pairs.
#
symmir split
Did
the split action succeed? ______________
b)
Run the “query” again and when the
synchronization completes, attempt the split again.
#
symmir query -i 5
# symmir split
#
symmir query
You now have a
point-in-time copy of your “data”!
c)
Re-establish your BCV you split above and again
query your devices.
#
symmir establish
# symmir query
Why did this establish
complete so quickly?_____________
_____________________________________
In preparation for TimeFinder Lab 2, create a
Partition on each of the standard volumes, format and add an NTFS File System on
the Volumes, and add a drive letter to access the file system. Replace “my”
with your initials, as usual.
a)
Initialize
the Physical Volumes
Initialize both of your Standard Volumes
# In
disk management, click on the disk box of each volume and select “write
signature”.
b)
Create
Partition
#
Right mouse click on each unallocated partition and select to “create
partition”.
c)
Create
Logical drive.
#
Using the wizard create an NTFS file system and assign a drive letter to it.
Add
“data” to the file system
To do this you can simply
copy data from folders on the C: drive to each of the new file systems.
Exercise Wrap-up:
symlmf - ___________________________________
symcfg - ___________________________________
symdg - ___________________________________
symld - ___________________________________
symbcv - __________________________________
symdev - _______________________________
symmir - ______________________________
This concludes TimeFinder (W2K). In the next
exercise, we will split our BCV mirror and use it on the same host for Business
Continuance Operations.
Good Luck!
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