Dell PowerVault NX1950 - Manual (Page 4)

Issue Description Workaround/Solution
RAID 1 and RAID 10 are
both reported as RAID1_0
and are referred to as
mirrored You have an option to create either a RAID 5 or a
mirrored LUN. When you create a mirrored LUN, the
default is two disks, which is actually striping with
mirroring without parity and not a mirrored LUN. This is working as designed.
In the Gateway solution,
the PowerPath application
logs an error In the Gateway solution, you may see a PowerPath
error, after you upgrade from the Windows Unified
Data Storage Server 2003 Standard Edition to the
Enterprise Edition or after you join a domain. Reinstall PowerPath using the Repair option. Ensure that you have
administrative privileges on the domain controller.
Cluster resources may
cause errors when you
enable Single Instance
Storage (SIS) on a
PowerVault NX1950
cluster If you enable SIS on a shared physical disk resource on
a PowerVault NX1950 cluster and then attempt to
move a group (with one of the shared physical disks),
the resource does not move between nodes and fails
eventually. The other physical resource may also fail. This issue is currently being investigated by Microsoft.
If you have already configured SIS in a cluster environment, you can
either disable SIS or the volume can be UN-SISed by performing the
following:
l Disable SIS (recommended)
a. To recover from failed resources reboot the cluster nodes
one after the other. This forces the resources to move to a
node.
b. Open a command prompt on the node which owns the
physical disks and run the following command: sisadmin /d
c. Move the group to the other node and do the same. This
ensures that Groveler service is stopped and the resources
can failover successfully.
l UN-SIS the shared physical disks.
a. Backup the data on the shared physical disks.
b. Delete and recreate the volumes.
c. Restore the backed up data.
The Microsoft
Management Console
hangs during an
operation The Microsoft Management Console stops responding
or hangs during an operation execution. To work around this issue, perform one of the following:
l Close and restart the Microsoft Management Console.
l Log off and Log on to the system and re-open the Microsoft
Management Console.
l Restart your system.
Inconsistency between
the slot number displayed
in Microsoft Management
Console and PowerVault
Modular Disk Storage
Manager In the PowerVault NX1950 Microsoft Management
Console, the storage enclosure slots are numbered
from 1 to 15. The same slots are numbered from 0 to
14 in the PowerVault Modular Disk Storage Manager. There is no workaround.
Quorum disk is created
automatically from the
available disks The PowerVault NX1950 Management Console
automatically selects the quorum disk from the
available disk or volume even if data exists on the disk
or volume. However, the existing data on the disk or
volume is not erased. This feature is working as designed. The quorum disk cannot be
selected by the user. Before you create a cluster, it is recommended
that you allocate storage space on the storage array and ensure that
RAID 1 volume is available.
In the Integrated
solution, password
protected PowerVault
MD3000 arrays are not
supported The Dell Storage Initialization Wizard cannot
configure password protected PowerVault MD3000
arrays. It does not display an error message indicating
that the configuration has failed. Do not password protect the PowerVault MD3000 Storage Array
OR
Set a password through the SMReg tool. The tool is a part of the VDS
provider and is located in the installation directory.
Microsoft Services for NFS
does not validate the
domain name The Active Directory Domain field in the Microsoft
Services for NFS Properties window accepts any
value and the value in this field is not validated to
ensure if the domain name exists. This issue causes
problems when you access NFS services within a
domain. To work around this issue, use the Identity Mapping wizard to validate
the domain name. This wizard can be launched from the Microsoft
Services for NFS console.
Setting quota limit that is
larger than the LUN size
does not display an error
message The PowerVault NX1950 Management Console does
not display a warning message when you set the
quota limit larger than LUN size. Verify the LUN or volume size before setting a quota limit.
In the PowerVault
MD3000 storage array,
new LUNs cannot be
created in a disk group If all the disks are assigned to disk groups, you cannot
create a LUN on the available free space in disk groups
using the PowerVault NX1950 Management Console. l Extend the existing LUNs size.
OR
l Use the PowerVault Modular Disk Storage Manager to create
LUNs and assign the LUNs to the system manually.
Mounting shared volumes
using network file system
(NFS) displays an error in
Linux clients When you mount a share on a Linux client, the
following error message is displayed:
mount: <NASServerName>:/<ShareName>: can't read
superblock
To work around this issue, perform the following steps:
1. Click Administrative tools® Local Security Policy® Local
Policies User Rights Assignment® Bypass Traverse Checking
2. Click Add User or Group, add anonymous logons and, click OK to
apply.
3. Run the following command from the Linux client command
prompt and then reboot the server: gpudate/server
Unauthenticated users
can configure storage
with Dell|EMC arrays Before the privileged users list is populated on
Dell|EMC arrays, all users with administrator rights can
successfully perform operations in the Storage
Manager for SANs and in the Storage Provision Run the Dell Storage Initialization Wizard and log in to the array. The
privileged users list is now populated thereby preventing unauthorized
users from accessing the storage array.