Unity Certification ACTUAL UPDATED
Exam Questions and CORRECT Answers
How many luns can be in one Consistency Group? - CORRECT ANSWER - 50
Consistency Group - CORRECT ANSWER - a grouping of up to 50 LUNs to form a
single instance of LUN storage.
What do you use to migrate CIFS/SMB? - CORRECT ANSWER - EMCopy
What can be used to migrate LUNS from VNX2 to unity? - CORRECT ANSWER -
RecoverPoint/RecoverPoint for VMs and VPLEX for replication; SAN Copy, PPME, and
VMware Storage vMotion for block migration;
What is configured to allow VMware admins to provision storage from Vcenter, what is the
plugin? - CORRECT ANSWER - VMware vSphere Storage APIs - Array Integration
How do you Restore snapshtos of SMB share? - CORRECT ANSWER - go to previous
versions tab on windows client of existing share
How do you Restore NFS export? - CORRECT ANSWER - locate snapshot in hidden
.ckpt. of existing export
How do you Restore a LUN snaphot? - CORRECT ANSWER - Properties page of the
LUN, click snapshots, more actions, then restore. This will create a restore point for full restore.
Or you can attach for hosts to access.
How is the 12gb/s SAS I/O module used in the unity storage arrays ? - CORRECT
ANSWER - It is used to add additional disk array enclosures and increase drive count for
Unity 500 and 600
,Which unity replaces vnx 5800? - CORRECT ANSWER - Unity 600
What VSA licenses are there - CORRECT ANSWER - * Community -- 4tb no support
* Professional -- 3 tiers 10,25,50 tb, come with awesome support
* VVol edition -- 50 TB, for VNX2
How many snapshots can be created for one lun or FS? - CORRECT ANSWER - 256
What is the default lun snapshot retention? - CORRECT ANSWER - Default for "remain
until" is 1 week, there is also pool retention policy which is set by default, this will cause snaps
to delete when the value set in pool is reached.
Confirm what is true about system defined Snapshots - CORRECT ANSWER - they are
not editable
Max VDisk size for professional VSA? - CORRECT ANSWER - 50 TB
What is needed to build a storage pool in unityVSA? - CORRECT ANSWER - VDISK
What is the max number of Vdisk for VSA? - CORRECT ANSWER - 16
Max number of unityVSA snapshots? - CORRECT ANSWER - 128
What is the min OE UnityVSA can be deployed on? - CORRECT ANSWER - ESXi 5.5
What type of network slics does VSA recommend and support? - CORRECT ANSWER -
network interfaces is four 1GbE or four 10GbE
, What Vdisk provisioning is recommended for best performance when creating vdisk for Unity
VSA? - CORRECT ANSWER - Thick provision eager zero
Max number of synchronous destinations? - CORRECT ANSWER -1
Max number of Asynchronous destinations? - CORRECT ANSWER -4
Customer is using a 200GB flash drive for fast cache, they try to add a 400gb drive and get any
error, why? - CORRECT ANSWER - You can only add the same size to the drive to fast
cache.
What type of drives does unity support for fast cache? - CORRECT ANSWER - 200gb
and 400gb
You have 1tb fs, using 250GB and pool usage is 450, How much space will the pool regain if
you shrink the FS to 300gb? - CORRECT ANSWER - 150
The filesystem is 1 TB in size and contains 250 GB of data. This filesystem is not fully allocated
and only 450 GB of Pool Storage is in use. The user wishes to Shrink the filesystem to 300 GB
in size. - CORRECT ANSWER - The user makes the request to shrink the 1 TB filesystem
by 700 GB to a new size of 300 GB. The Storage Manager scans the space involved and
determines some data must be moved or Evacuated from the space to be reclaimed. The data is
moved to free space within the filesystem to complete the Evacuation. The filesystem is resized
to 300 GB, freeing up 150 GB of storage. Finally, the 150 GB of newly freed space is returned to
the Storage Pool and is added to the Storage Pool free space.
What can you change the fast vp settings? - CORRECT ANSWER - tireing policy under
lun
What can you change in the advance fast vp settings? - CORRECT ANSWER - Under
pool you can, pause data relocation, change relocation rate, and modify relocation schedule.
Exam Questions and CORRECT Answers
How many luns can be in one Consistency Group? - CORRECT ANSWER - 50
Consistency Group - CORRECT ANSWER - a grouping of up to 50 LUNs to form a
single instance of LUN storage.
What do you use to migrate CIFS/SMB? - CORRECT ANSWER - EMCopy
What can be used to migrate LUNS from VNX2 to unity? - CORRECT ANSWER -
RecoverPoint/RecoverPoint for VMs and VPLEX for replication; SAN Copy, PPME, and
VMware Storage vMotion for block migration;
What is configured to allow VMware admins to provision storage from Vcenter, what is the
plugin? - CORRECT ANSWER - VMware vSphere Storage APIs - Array Integration
How do you Restore snapshtos of SMB share? - CORRECT ANSWER - go to previous
versions tab on windows client of existing share
How do you Restore NFS export? - CORRECT ANSWER - locate snapshot in hidden
.ckpt. of existing export
How do you Restore a LUN snaphot? - CORRECT ANSWER - Properties page of the
LUN, click snapshots, more actions, then restore. This will create a restore point for full restore.
Or you can attach for hosts to access.
How is the 12gb/s SAS I/O module used in the unity storage arrays ? - CORRECT
ANSWER - It is used to add additional disk array enclosures and increase drive count for
Unity 500 and 600
,Which unity replaces vnx 5800? - CORRECT ANSWER - Unity 600
What VSA licenses are there - CORRECT ANSWER - * Community -- 4tb no support
* Professional -- 3 tiers 10,25,50 tb, come with awesome support
* VVol edition -- 50 TB, for VNX2
How many snapshots can be created for one lun or FS? - CORRECT ANSWER - 256
What is the default lun snapshot retention? - CORRECT ANSWER - Default for "remain
until" is 1 week, there is also pool retention policy which is set by default, this will cause snaps
to delete when the value set in pool is reached.
Confirm what is true about system defined Snapshots - CORRECT ANSWER - they are
not editable
Max VDisk size for professional VSA? - CORRECT ANSWER - 50 TB
What is needed to build a storage pool in unityVSA? - CORRECT ANSWER - VDISK
What is the max number of Vdisk for VSA? - CORRECT ANSWER - 16
Max number of unityVSA snapshots? - CORRECT ANSWER - 128
What is the min OE UnityVSA can be deployed on? - CORRECT ANSWER - ESXi 5.5
What type of network slics does VSA recommend and support? - CORRECT ANSWER -
network interfaces is four 1GbE or four 10GbE
, What Vdisk provisioning is recommended for best performance when creating vdisk for Unity
VSA? - CORRECT ANSWER - Thick provision eager zero
Max number of synchronous destinations? - CORRECT ANSWER -1
Max number of Asynchronous destinations? - CORRECT ANSWER -4
Customer is using a 200GB flash drive for fast cache, they try to add a 400gb drive and get any
error, why? - CORRECT ANSWER - You can only add the same size to the drive to fast
cache.
What type of drives does unity support for fast cache? - CORRECT ANSWER - 200gb
and 400gb
You have 1tb fs, using 250GB and pool usage is 450, How much space will the pool regain if
you shrink the FS to 300gb? - CORRECT ANSWER - 150
The filesystem is 1 TB in size and contains 250 GB of data. This filesystem is not fully allocated
and only 450 GB of Pool Storage is in use. The user wishes to Shrink the filesystem to 300 GB
in size. - CORRECT ANSWER - The user makes the request to shrink the 1 TB filesystem
by 700 GB to a new size of 300 GB. The Storage Manager scans the space involved and
determines some data must be moved or Evacuated from the space to be reclaimed. The data is
moved to free space within the filesystem to complete the Evacuation. The filesystem is resized
to 300 GB, freeing up 150 GB of storage. Finally, the 150 GB of newly freed space is returned to
the Storage Pool and is added to the Storage Pool free space.
What can you change the fast vp settings? - CORRECT ANSWER - tireing policy under
lun
What can you change in the advance fast vp settings? - CORRECT ANSWER - Under
pool you can, pause data relocation, change relocation rate, and modify relocation schedule.
