Dell PowerStore 1200T EMC PowerStore Release Notes for PowerStore OS Version 3 - Page 13

Storage - File, Storage - Block

Page 13 highlights

Issue ID MDT-346149 MDT-284475 MDT-242368 MDT-314995 MDT-139095 MDT-147688 MDT-116676 MDT-137232 MDT-195652 Functional Area Description Workaround/Resolution Storage - Block Storage - Block Storage - Block Storage - File Storage - File Storage - File Storage - File Storage - File Storage - File During system metadata consolidation a rare condition may occur which can cause data services on a single node to restart. This will interrupt IO servicing on the node for approximately 2 minutes until the service is started. IO to the other node is unaffected. After mapping a LUN or creating a VM, the LUN or VM appears correctly, but it is inaccessible to hosts. Unable to delete a volume group after deleting a replication session, due to undeleted replication session system snapshots. In a Unified appliance cluster, after the system exits from an out of space scenario, some of the NAS Servers will not return to Read-Write mode when the controlpath restarts. While trying to create or delete a snapshot the following error message was returned: "Addition [or deletion] of NFS Export failed due to [The path [path_name] was not found on the system and cannot be exported.]" SMB clients cannot connect to a NAS server when the NAS server name is more than 15 characters. This is because by default the SMB server computer name takes the NAS server name. The "NAS node is down," major alert may be seen after changing the Cluster MTU value. Changing the MTU value may cause degradation or disruption in NAS (file) services. Under rare circumstances, NAS services could be disrupted, if the appliance is close to reaching the maximum used data capacity. Unable to remove the description from an NFS Export. None Unmap the non-working LUN and map it again. For VMs, delete the non-working VM and recreate it. Contact your service provider for the procedure to delete the snapshots. Contact your service provider. Wait for some time and try the action again. Set the NAS Server name with 15 characters or less or set the SMB server's computer name with 15 characters or less. To modify the computer name, select all the characters in PowerStore Manager, and type the new name. Wait for the alert to clear before performing any further NAS (File) operations. Take one of the following actions on the appliance on which the NAS service is installed: add capacity to the appliance (for example, add drives or expansion enclosures), increase free capacity on the system (for example, deleting unused snapshots, volumes) , or migrate data off the system. To change the description, overwrite the current description with a blank character space. Save the NFS Export with no description, then go back and update the description again. Known Issues 13

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Known Issues
13
Issue ID
Functional
Area
Description
Workaround/Resolution
MDT-346149
Storage - Block
During system metadata consolidation
a rare condition may occur which can
cause data services on a single node to
restart.
This will interrupt IO servicing
on the node for approximately 2
minutes until the service is started.
IO
to the other node is unaffected.
None
MDT-284475
Storage - Block
After mapping a LUN or creating a VM,
the LUN or VM appears correctly, but
it is inaccessible to hosts.
Unmap the non-working LUN and map it
again. For VMs, delete the non-working
VM and recreate it.
MDT-242368
Storage - Block
Unable to delete a volume group after
deleting a replication session, due to
undeleted replication session system
snapshots.
Contact your service provider for the
procedure to delete the snapshots.
MDT-314995
Storage - File
In a Unified appliance cluster, after the
system exits from an out of space
scenario, some of the NAS Servers will
not return to Read-Write mode when
the controlpath restarts.
Contact your service provider.
MDT-139095
Storage - File
While trying to create or delete a
snapshot the following error message
was returned: "Addition [or deletion] of
NFS Export failed due to [The path
[path_name] was not found on the
system and cannot be exported.]"
Wait for some time and try the action
again.
MDT-147688
Storage - File
SMB clients cannot connect to a NAS
server when the NAS server name is
more than 15 characters. This is
because by default the SMB server
computer name takes the NAS server
name.
Set the NAS Server name with 15
characters or less or set the SMB
server's computer name with 15
characters or less. To modify the
computer name, select all the characters
in PowerStore Manager, and type the
new name.
MDT-116676
Storage - File
The "NAS node <node name> is down,"
major alert may be seen after changing
the Cluster MTU value. Changing the
MTU value may cause degradation or
disruption in NAS (file) services.
Wait for the alert to clear before
performing any further NAS (File)
operations.
MDT-137232
Storage - File
Under rare circumstances, NAS
services could be disrupted, if the
appliance is close to reaching the
maximum used data capacity.
Take one of the following actions on the
appliance on which the NAS service is
installed: add capacity to the appliance
(for example, add drives or expansion
enclosures), increase free capacity on
the system (for example, deleting unused
snapshots, volumes) , or migrate data off
the system.
MDT-195652
Storage - File
Unable to remove the description from
an NFS Export.
To change the description, overwrite the
current description with a blank
character space. Save the NFS Export
with no description, then go back and
update the description again.