Just a place to put
some links and notes collected in my inbox over the last 5 months… Been a busy
few months so research emails have built up - now to find time to actually read
them!
With sections: Citrix, Microsoft,
NetApp,
Veeam,
VMware, Miscellaneous,
MS 2012R2
TechEd Sessions, Microsoft Troubleshooting, NetApp
Troubleshooting, VMware
Troubleshooting, XXX
## Citrix ##
Faster NetApp storage replication with CloudBridge
Drumroll please…top 10 Synergy sessions…watch them today!
Eight Reasons To Run XenDesktop 7 on Hyper-V 2012
## Microsoft ##
Network Planning, Monitoring, and Troubleshooting with
Lync Server
10 great new features in Windows Server 2012 R2 Hyper-V
(+3 more)
- Gen2 VMs
- VM Direct Connect
- Extend replication to a third site
- Replica frequency options
- Compression for faster migration
- Online VM exporting and cloning
- Online VHDX resizing
- Storage QoS
- Dynamic Memory support for Linux
- Shared VHDX
+ Automated storage tiering
+ Running virtual machines off deduplicated volumes
+ Live Migration at the speed of RAM
Extending device support in Active Directory
## NetApp ##
What is Reallocation?
Is there any other way to disable console messages from
popping up other than editing the /etc/syslog.conf file and hashing out the *.info /dev/console? NO
Being persistent: The true power of VDI
How to convert a Data ONTAP node from one operating Mode
to the other
Disable 'Storage Failover' or 'Cluster Failover' and
reboot the node to the LOADER prompt.
Perform the following steps to convert from Data ONTAP
7-Mode to Data ONTAP 8.1 (and later versions) Cluster-Mode
LOADER> set-defaults
LOADER> setenv
bootarg.init.boot_clustered true
LOADER> setenv bootarg.bsdportname
{node-mgmt_port_name}
LOADER> boot_ontap
Perform the following steps to convert from Data ONTAP
Cluster-Mode to Data ONTAP 7-Mode
LOADER> set-defaults
LOADER> boot_ontap
Then at the Boot menu, select option 4 to perform a
wipeconfig!
How to setup and configure the Cluster Network Switch
Tech OnTap Newsletter (August 2013)
+ What's New in
Clustered Data ONTAP 8.2?
+ Is Software-Defined
Storage in Your Future?
NetApp Global Support: Space: Cluster-Mode for the 7-Mode
Administrator
How long does it approximately take for a RAID
reconstruction?
Image: RAID
Reconstruction Time Estimates
Netapp daily checks – available inodes/maxfiles
reallocate vs. extent vs. read_realloc
Optimizing NetApp Block IO Performance
## Veeam ##
Veeam Backup and VIX libraries: howto backup networkless
VMs using VSS
Multiple Domain Controllers - How to Backup?
Turn PowerShell into GUI
Veeam B&R v5 recovery of a domain controller
NEW Veeam Backup & Replication v7
FREQUENTLY ASKED QUESTIONS (FAQ) for Veeam v7
## VMware ##
Understanding VMware vSphere 5.1 Storage DRS
High Availability By Design with vCloud Hybrid Service
Physical or Appliance – Upgrading to vCenter Server 5.1
The FUD Strikes Back – Oracle Licensing on VMware
101
FREE TOOLS FOR VMWARE ADMINISTRATORS
Network
port diagram for vSphere 5.x (2054806)
New Book - vSphere Performance Reporting with PowerCLI:
Automating vSphere Performance Reports (VMware Press Technology)
Faking an SSD in your virtualized vSphere lab
esxcli storage nmp satp rule add --satp VMW_SATP_LOCAL
--device mpx.vmhba2:C0:T0:L0 --option "enable_local enable_ssd"
esxcli storage core claiming reclaim -d
mpx.vmhba2:C0:T0:L0
esxcli storage core device list
--device=mpx.vmhba2:C0:T0:L0
Emulating an SSD Virtual Disk in a VMware Environment
Enabling
Virtual Disk Sharing!
“Disabling simultaneous write protection provided by VMFS
using the multi-writer flag (1034165)”
Why is uploading files to VMFS so slow?
vSphere 5.5 top 3 new features in a nutshell:
- Up to 62TB
virtual disks
- vSphere
Application HA: application-aware High Availability that monitors and restarts
applications running inside VM
- SSO 2.0:
completely re-written and streamlined Single Sign-On engine
+ Lots of polish!
An opinion on vSphere Application HA:
Edited quote from
Gostev@Veeam - “First, this feature is not something built into the platform,
but rather completely "glued" on top of it. Before you can even start
using this feature, you will need to deploy two separate appliances. The first
appliance is Hyperic appliance which is Microsoft SCOM like tool with ugly web
interface (carrying maybe 10% of SCOM functionality), and sporting identical
architecture (thus bringing 100% of SCOM complexity along). Second appliance is
actual VMware AppHA appliance, which orchestrates "stuff" between Hyperic
server and vCenter Server. AppHA requires that you deploy special monitoring
agents in every VM!”
What’s New in vSphere 5.5 Storage
+ Virtual SAN (VSAN)
+ vSphere Flash Read Cache
+ 62TB VMDKs and vRDMs
+ 16Gbit FC E2E Support
+ Microsoft Cluster Services Enhancements
+ PDL AutoRemove
+ VAAI UNMAP Improvements
+ VMFS Heap Improvements
+ Storage DRS, Storage vMotion & vSphere Replication
Interop
vSphere 5.x support with NetApp MetroCluster (2031038)
Image: NetApp
Stretch MetroCluster
Image: NetApp
Fabric MetroCluster
vSphere 5.5 Jumbo VMDK Deep Dive
VMware Hands-On Lab (HOL)
Start your engines, time to download vSphere 5.5
Installing vCenter Server 5.5 best practices
Issues with authentication when running vSphere 5.5 with
AD and SSO server on Windows Server 2012
Active Directory authentication fails when vCenter Single
Sign-On 5.5 runs on Windows Server 2012 and the AD Domain Controller is also on
Windows Server 2012 (2060901)
Upgrade from vSphere 5.1 to vSphere 5.5 rolls back after
importing Lookup Service data (2060511)
## Miscellaneous ##
Tip For Tech Bloggers: Easy Way to Document Command
History
Linux:
$ history
$ history >
history.txt
Microsoft:
> doskey
/history > history.txt
> doskey
/history >> \history.txt
> doskey /?
Hunting down unnecessary I/O before you buy that next
storage solution
Amazon Web Services: should you stay or should you go?
## Microsoft: Top picks among Windows Server 2012 R2 Storage and
Hyper-V TechEd sessions ##
Introduction to Windows Server 2012 R2
Deploying Windows Server 2012 R2 File Services for
Exceptional $/IOPS
Storage Spaces: What’s New in Windows Server 2012 R2
Storage and Availability Improvements in Windows Server
2012 R2
Continuous Availability: Deploying and Managing Clusters
Using Windows Server 2012 R2
Hyper-V - What's New in Windows Server 2012 R2
Understanding the Hyper-V over SMB Scenario,
Configurations, and End-to-End Performance
Reduce Storage Costs with Data Deduplication
Storage Management: Spanning the Enterprise to Low Cost
Scalable Solutions
Windows Server 2012 Hyper-V Storage Performance
Upgrading the Platform - How to Get There! Part 4: Your
Fileservers and Storage Options
Windows Server 2012 Failover Cluster Disaster Recovery:
Everything You Need to Know to Prepare and Successfully Recover
What’s New in Microsoft System Center 2012 R2 - Virtual
Machine Manager
Windows Server Storage for Non-Windows Clients (Including
Apple OS X, Linux, and VMware)
## Microsoft Troubleshooting Issue 1 ##
Loss of consistency with IDE-attached virtual hard disks
when a Hyper-V host server experiences an unplanned restart
Windows Server 2012
Install update rollup 2855336 on the Windows Server
2012-based Hyper-V host.
Windows Server 2008 R2
Install update 2853952 on the Windows Server 2008
R2-based Hyper-V host. Also, install update 2853952 on the guest if the guest
is running Windows Server 2008 R2 or Windows 7.
## NetApp Troubleshooting Issue 1 ##
How to troubleshoot AutoSupport delivery when using SMTP
Clustered Data ONTAP:
clus::> event log show -messagename
asup.smtp*
clus::> event log show -messagename
asup.post*
clus::> network ping -node {node_name}
-destination {remote_server}
clus::> network traceroute -node
{node_name} -destination {remote_server}
Data ONTAP 7-Mode:
ntap> wrfile -a /etc/syslog.conf *.debug
/etc/messages
Test ASUP CDOT:
clus::> system mode autosupport invoke
-node {node name} -type test -message "Test ASUP"
Test ASUP 7DOT:
ntap> options autosupport.doit “Test
ASUP”
How to troubleshoot AutoSupport delivery when sent over
HTTP or HTTPS
Clustered Data ONTAP:
clus::> vserver services dns show
clus::> network ping -node {node_name}
-destination {remote_server_name}
clus::> network traceroute -node
{node_name} -destination {remote_server_name}
Data ONTAP 7-Mode:
ntap> dns info
ntap> getXXbyYY gethostbyname_r {host_name}
ntap> ping {hostname}
ntap> traceroute -p port
support.netapp.com
## NetApp Troubleshooting Issue 2 ##
Reprotect operation might fail in SRM 5.x with the error
'SRA command 'discoverDevices' failed'
1. Verify that the snapmirror.conf file contains an entry
for the SnapMirror relationship from the protected site to the recovery site.
2. Create an entry in the file if it is missing, even if
you do not attach a schedule to the end.
## NetApp Troubleshooting Issue 3 ##
Troubleshooting Workflow: SnapMirror update -s failures
Issue A: A snapshot with the same name already exists at
Destination
clus::> snap rename -vserver {vserver
name} -volume {volume name} -snapshot {snapshot name}
Issue B: update -s fails to transfer the snapshot
clus::> snap rename -vserver {vserver
name} -volume {volume name} -snapshot {snapshot name}
clus::> snapmirror policy modify-rule
-vserver {vserver name} -policy {policy name} -snapmirror-label daily -preserve
false
## NetApp Troubleshooting Issue 4 ##
7MTT – How to collect the 7MTT log files and data
relevant to the tool to provide it for a support case
1. Log in as Admin to the Windows machine on which the
7MTT tool is installed
2. Navigate to the root directory where the 7MTT
transition tool is installed (default: C:\Program Files\NetApp\7-Mode Transition Tool)
3. Compress the entire 'etc' and 'logs' directories
## VMware Troubleshooting Issue 1 ##
Virtual machine remote console screen takes up to a
minute to display (2053692)
To turn off the automatic root certificates update:
- Click Start > Run, type gpedit.msc , and press enter
- In the left pane, navigate to Local Computer Policy
> Computer Configuration
- In the right pane, double-click the Administrative
Templates folder > System > Internet Communication Management >
Internet Communication Settings
- Right-click Turn off Automatic Root Certificates Update
and click Edit
- Select Enabled and click OK
## VMware
Troubleshooting Issue 2 ##
SCSI cmd RESERVE failed on path … reservation state on device
… is unknown
Failed to initialize VMFS3 distributed locking on volume … Timeout
ESXi 5.0 hosts fail to mount VMFS5 volumes that are
formatted with ATS-only capabilities (2006858)
# esxcli system settings advanced
set -i 0 -o /VMFS3/HardwareAcceleratedLocking
What happens when VMFS heap depletes completely?
Storage problems on SAN
Presenting CLARiiON CX500 and CX4-240 to same ESXi host
“… it looked as
though one fo the ESXi servers had a lock on one of the VMFS volumes on the
CX4-240 array, once all the
ESXi hosts were restarted the lock was removed and the VMFS volume was
mountable and visible …”
Upgrade to 5.1 HP Custom Image unable to mount P2000 SAS
Vdisk
“… seems the issue
did actually occur because the vaai plugin was installed and enabled... VAAI
detected that the P2000 G3 did have Hardware locking support … however it did
not seem to function correctly... Once we disabled VAAI, everything was fine …”
WARNING: NMP: nmp_DeviceRequestFastDeviceProbe
Resolving SCSI reservation conflicts (1002293)
# vmkfstools --lock lunreset /vmfs/devices/disks/vml…
READ THIS: Storage
Performance and Timeout Issues
“… the storage team and EMC became involved and confirmed
that the FA port was
overloaded.”
## VMware Troubleshooting Issue 3 ##
Possible data corruption after a Windows 2012 virtual
machine network transfer (2058692)
To work around this issue, perform one of these options:
- Disable TCP segmentation offload (TSO) in the source
Windows 2012 guest operating system
- Use the vmxnet3 or e1000 network adapter as an
alternative to the e1000e
## NetAppDocs
(NetApp Internal) ##
*For 7-Mode and
C-Mode
Communities search for netappdocs
USPS Scripts and Tools
NetAppDocs Release v2.2.0
NetAppDocsLite Release v2.2.0
Getting started with the NetAppDocs PowerShell Module
(PPT)
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