SAN NAS Analyst

Western Digital Corp.launches first helium drive

2013-11-07T15:57:00.002-08:00

HGST Inc., a subsidiary of Western Digital Corp., today launched its first helium-filled hard disk drive, the 6 TB Ultrastar He6.

The new drives consist of disk platters sealed inside a hermetic chamber filled with heliuminstead of air. The breakthrough storage technology allows manufacturers to increase capacity by stacking more disk platters inside a 3.5-inch form factor while significantly reducing power consumption.

The HGST Ultrastar He6 helium drive contains seven disk platters in a 1 inch-high drive. Current standard air-filled disk drives contain five platters and a maximum of 4 TB. Helium is one-seventh the density of air, so there is less turbulence caused by disk and heads that move to read and write data. HGST claims helium drives will reduce power consumption on average by 23%.

http://searchstorage.techtarget.com/news/2240208458/HGST-Inc-launches-first-helium-drive

NetApp Efficient IT Calculator

2012-10-22T14:39:00.002-07:00

10 Exabyte Storage System

2012-06-09T00:38:00.000-07:00

Cleversafe, a cloud storage software vendor which offers its customers "limitless storage space", says that it has designed a dispersed storage system that exceeds a storage capability of 10 Exabytes (EB), or 1,000 Petabytes (PB).

Zoom

The system is based on Cleversafe's Portable Datacenter (PD), which integrates 21 storage and network racks that include 189 storage nodes of 45 x 3 TB drives to offer a total storage capacity of 25,515 TB. The current configuration also includes 35 PDs per site (893,025 TB) and 16 sites total (14,288,400 TB with more than 4.7 million drives total). In total, Cleversafe offers about 13.6 EB of storage.

What could you do with so much storage? The best application scenario today may be data mining. Large scale data mining. “Internet traffic volumes are increasing at a rate of 32 percent globally each year. It’s not unrealistic to think companies looking to mine that data would need to effectively analyze 80 EBs of data per month by 2015,” said Russ Kennedy vice president of Product Strategy, Marketing and Customer Solutions for Cleversafe. Kennedy noted that the company's storage solution is a "foundational enabler to Big Data analytics.” The object-based storage could especially be useful in large-data applicatiosn leveraged by governments and defense agencies.

However, Cleversafe noted that the creation of the Exabyte storage model was a result of Federal government and a telecommunications provider inquiring what it would take to achieve a 10 Exabyte storage system. Kennedy noted that, because of these inquiries, the company knows that there is "definitely interest" in such a product.

NetApp - Automated Storage Tiering

2012-05-23T00:49:00.000-07:00

NetApp has put a lot of time and energy into understanding the problems that AST must address in order to architect an optimal solution.

This article describes:

Criteria for evaluating AST technologies
Migration-based versus caching-based AST approaches
The NetApp® Virtual Storage Tier—a caching-based approach to AST

http://www.netapp.com/us/communities/tech-ontap/tot-ast-virtual-storage-tier-1104.html

Market Share Analysis: Network-Attached Storage/Unified Storage, Worldwide, 2011

2012-04-06T00:52:00.000-07:00

EMC overtook NetApp in 2011 as the No. 1 vendor in terms of overall vendor-branded revenue for network-attached storage (NAS) and unified storage through internal growth (VNX/VNXe and Data Domain) and acquisition (Isilon).
NetApp's Data Ontap maintains its No. 1 ranking for NAS/unified storage in terms of technology platform.
The estimated "pure NAS" market (excluding the block storage portion of the unified storage market) grew 21.5% in vendor revenue in 2011, much faster than block-based storage arrays because of the NAS support of growing vertical applications and virtualization.
The NAS market has become increasingly consolidated with innovative products and vendors acquired by top-tier storage vendors in the past two years.

http://www.gartner.com/technology/reprints.do?id=1-1AIHCBH&ct=120515&st=sb

NetApp System Manager 2.0 Public Beta

2011-08-02T19:03:00.000-07:00

System Manager 2.0 enables you to manage multiple storage systems and storage elements such as disks, volumes, and aggregates. It provides a Web-based graphical management interface to manage common storage system functions from a Web browser.

You can perform tasks such as:

- Configure and manage storage elements such as disks, aggregates, volumes, LUNs, qtrees, and quotas.
- Configure protocols such as CIFS and NFS and provision file sharing.
- Configure protocols such as FC and iSCSI for block access.
- Create vFiler units and manage them.- Set up SnapMirror relationships and manage SnapMirror tasks.- Manage HA configurations and perform takeover and giveback.
- Monitor and manage your storage systems.

Note: The Public Beta program is open to all existing NetApp customers. The Beta version of NetApp System Manager 2.0 software has to be installed only on non-production environments. Beta has a limited support on NetApp communities only.

http://communities.netapp.com/groups/netapp-system-manager-20-public-beta

NetApp System Manager 2.0 Tutorials
http://communities.netapp.com/docs/DOC-10703

Disk drive in BYP (disk bypass) status

2011-06-20T15:21:00.000-07:00

What are Drive Bypass Events?

fcal link_stats report BYP status.

Example:
localhost> fcstat device_map
Loop Map for channel 4a:
Translated Map: Port Count 28
7 29 27 26 25 24 23 22 21 20 19 18 17 16 45 44
43 42 41 40 39 38 37 36 35 34 33 32
Shelf mapping:
Shelf 1: 29 BYP 27 26 25 24 23 22 21 20 19 18 17 16
Shelf 2: 45 44 43 42 41 40 39 38 37 36 35 34 33 32

This means that the disk id 28 has been bypassed.

Drive bypass events are situations which cause the ESH to bypass a drive port thus making it inaccessible by the host and isolating the drive from the loop. There are primarily two different kinds of drive Bypass Events:
Threshold Bypasses - Situations where the ESH detects that a certain kind of error is occurring for a specific period of time and the determination is made to bypass the port because of accumulated errors over time or over the amount of data flowing through the loop.
Policy Bypasses - Situations where the ESH detects a critical problem and bypasses a drive in order to maintain the integrity of the loop. This might be a "situational" problem which later clears, but once a drive is bypassed, it will remain bypassed until manually cleared by removing and reseating the drive, or by power cycling of the shelf.
Self Bypasses - The hard drive electronics determine that the internal circuitry cannot function properly anymore. Thus the drive itself calls to be removed from the loop.

EMC VNX/ Isilon Spec Sheet

2011-05-19T21:04:00.000-07:00

VNXe series -- http://www.emc.com/products/series/vnxe-series.htm#/1

VNX series -- http://www.emc.com/products/series/vnx-series.htm#/1

VNX Gateway -- http://www.emc.com/products/series/vnx-series-gateways.htm#/1

Isilon S-series -- http://www.isilon.com/s-series

Isilon X-series -- http://www.isilon.com/x-series

Isilon NL-series -- http://www.isilon.com/nl-series

General Availability of Data ONTAP 8.0.1 7-Mode

2011-05-19T20:59:00.001-07:00

Supported Platforms

Data ONTAP 8.0.1 7-Mode GA release is supported on the following platforms:

FAS/V62x0

FAS/V60x0

FAS/V32x0

FAS/V31x0

FAS/V3070

FAS/V3040

FAS2040

SA series

https://now.netapp.com/NOW/products/cpc/cpc1101-04.shtml

NetApp - Changing Gateway Settings

2011-04-27T10:53:00.000-07:00

1. SSH to controller 1.
2. Type 'rdfile /etc/rc'
3. Copy the contents of the /etc/rc output to notepad. (Might want to save this to a file for safe keeping)
1. Example
1.hostname bob
   ifconfig e0a `hostname`-e0a mediatype auto flowcontrol full netmask 255.255.255.0 partner e0a
   ifconfig e0b `hostname`-e0b mediatype auto flowcontrol full partner e0b
ifconfig e0c `hostname`-e0c mediatype auto flowcontrol full partner e0c
route add default 1.1.1.1 1
routed on
options dns.domainname bob.local
options dns.enable on
options nis.enable off
savecore

4. Change the notepad contents for the default route statement.
1. Example
1.hostname bob
   ifconfig e0a `hostname`-e0a mediatype auto flowcontrol full netmask 255.255.255.0 partner e0a
   ifconfig e0b `hostname`-e0b mediatype auto flowcontrol full partner e0b
ifconfig e0c `hostname`-e0c mediatype auto flowcontrol full partner e0c
route add default 2.2.2.2 1
routed on
options dns.domainname bob.local
options dns.enable on
options nis.enable off
savecore
5. Make sure you get this right or your system won't boot. Copy the contents of the modified file to your clipboard.
6. In the SSH session type 'wrfile /etc/rc'
7. Paste the contents of your buffer into the SSH session.
8. Press Ctrl+C to quit the editor.
9. Verify, type 'rdfile /etc/rc' and make sure there are no extra line breaks or truncations.
10. Type 'route delete default'
11. Type 'route add default 2.2.2.2 1'
12. SSH to controller 2.
13. Repeat steps abvove

Netapp Snapvault : Transfer aborted: destination qtree is not coalesced

2011-04-20T16:42:00.000-07:00

If you are working with NetApp SnapVault backups then at times you'll experience one of the issue with "qtree is not coalesced". SnapVault update command will fail unless you poke the backup relationship with "Snapvault start " as below: (this will re-initiate the backup from its most recent checkpoint)

filer:/vol/source_vol/source_qtree dr_filer:/vol/dest_vol/dest_qtree Uninitialized - Idle with restart checkpoint (at 196 GB)

[root@cherrytop etc]# rsh dr_filer snapvault update dr_filer:/vol/dest_vol/dest_qtree
Transfer aborted: destination qtree is not coalesced.

[root@cherrytop etc]# rsh dr_filer snapvault start -S filer:/vol/source_vol/source_qtree dr_filer:/vol/dest_vol/dest_qtree
Transfer started.
Monitor progress with 'snapvault status' or the snapmirror log.

filer:/vol/source_vol/source_qtree dr_filer:/vol/dest_vol/dest_qtree Uninitialized - Transferring (196 GB done)

What are the deduplication maximum volumes sizes and deduplication maximum total data limits for Data ONTAP 8.0.1?

2011-04-20T16:31:00.000-07:00

https://kb.netapp.com/support/index?page=content&id=3010088

Bits and Bytes Calculator

2011-04-13T11:49:00.000-07:00

I found this really useful when you have many remote sites and DR used alongside with backup solution.

http://www.speedguide.net/conversion.php

It also includes bandwidth reference table.

When do we use the bye, halt, and reboot commands?

2011-03-13T12:53:00.000-07:00

-- The bye command works at the ok prompt (ok>) to reboot the filer
-- The halt command works at the at filer prompt, it terminates all services (example: CIFS) and brings the filer to the ok prompt (ok>)
-- The reboot command works at the filer prompt (filer1>) to reboot the filer

Using the halt and bye command
cherrytop#> halt
CIFS local server is shutting down...
CIFS local server has shut down...
Tue Aug 3 15:57:01 PDT [kern.shutdown:notice]: System shut down because : "halt".
Tue Aug 3 15:57:01 PDT [iscsi.service.shutdown:info]: iSCSI service shutdown
Program terminated
ok reboot (shows that reboot only works from the filer prompt)
reboot ?
ok bye

Intel Open Firmware by FirmWorks
Copyright 1995-2004 FirmWorks, NetApp. All Rights Reserved.
Firmware release 4.2.3_i1
Press Del to abort boot, Es

Memory size is 512 MB
Testing SIO
Testing LCD
Probing devices
Testing 512MB
256 to 320MB
Skipping further tests
Complete
Finding image...
Loading isa floppy
Floppy not first boot disk
No floppy disk found.

Booting from fcal
Loading /pci2/fcal@7/disk@10
100%
Starting Press CTRL-C for special boot menu

Using the reboot command
cherrytop#> bye (shows that bye only works at the ok prompt)bye not found. Type '?' for a list of commands cherrytop#> reboot
CIFS local server is shutting down...
CIFS local server has shut down...
Tue Aug 3 16:46:01 PDT [kern.shutdown:notice]: System shut down because : "rebo
ot".
Tue Aug 3 16:46:01 PDT [iscsi.service.shutdown:info]: iSCSI service shutdown

Intel Open Firmware by FirmWorks
Copyright 1995-2004 FirmWorks, NetApp. All Rights Reserved.
Firmware release 4.2.3_i1
Press Del to abort boot, Esc to skip POST
Memory size is 512 MB

Note:In a clustered configuration, running the "reboot" command on a node does not cause a CF takeover implicitly. It starts a 90 second counter that allows the rebooted node time to come back online before attempting a takeover. This timer can be monitored with "cf status" while the partner node is rebooting.

Data ONTAP 8.0.1 7-Mode and later releases - enhancements

2011-03-05T22:59:00.000-08:00

Data ONTAP 8.0.1 7-Mode and later releases provide improved performance, resiliency, and management capabilities for storage resources.

Support for 64-bit aggregates:
In Data ONTAP 8.0 7-Mode and later releases, Data ONTAP supports a new type of aggregate, the 64-bit aggregate. 64-bit aggregates have a larger maximum size than aggregates created with earlier versions of Data ONTAP. In addition, volumes contained by 64-bit aggregates have a larger maximum size than volumes contained by aggregates created with earlier versions of Data ONTAP.

Upgrading to Data ONTAP 8.0.1 increases volume capacity after deduplication:
After you upgrade to Data ONTAP 8.0.1 and later from an earlier release of Data ONTAP, you can increase the deduplicated volume size up to 16 TB.

Maximum simultaneous FlexClone file or FlexClone LUN operations per storage system:
Starting with Data ONTAP 8.0 7-Mode, you can simultaneously run a maximum of 500 FlexClone file or FlexClone LUN operations on a storage system.

File space utilization report:
The file space utilization report enables you to see the files and the amount of space that they occupy in a deduplicated volume. You can choose to either move or delete the files to reclaim the space.

Increased maximum RAID group size for SATA disks:
Starting in Data ONTAP 8.0.1, the maximum raid group size allowed for ATA, BSAS, and SATA disks has increased from 16 to 20 disks. The default size remains the same, at 14 disks.

FlexClone files and FlexClone LUNs support on MultiStore:
In Data ONTAP 7.3.3 and later releases of the 7.x release family, and in Data ONTAP 8.0.1 and later, the FlexClone files and FlexClone LUNs commands are available in the default and nondefault vfiler contexts.

NetApp Deduplication volume size limitations

2011-03-05T22:33:00.000-08:00

I found this in one of the NetApp documentations for maximum deduplication volume size limits.

Create a new aggregate while zeroing spare disks

2011-03-05T22:28:00.000-08:00

cherry-top# aggr create aggr1 -r 14 -d 0a.16 0a.17 0a.19 0a.22 0a.23 0a.24 0a.25 0a.26 0a.27 0a.28 0a.29 0a.32 0a.33 0a.34
aggregate has been created with 11 disks added to the aggregate. 3 more disks need
to be zeroed before addition to the aggregate. The process has been initiated
and you will be notified via the system log as the remaining disks are added.
Note however, that if system reboots before the disk zeroing is complete, the
volume won't exist.

cherry-top# vol status -s

Spare disks
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
Spare disks for block or zoned checksum traditional volumes or aggregates
spare 0a.35 0a 2 3 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)
spare 0a.36 0a 2 4 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)
spare 0a.37 0a 2 5 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)
spare 0a.38 0a 2 6 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)
spare 0a.39 0a 2 7 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)
spare 0a.40 0a 2 8 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)
spare 0a.41 0a 2 9 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)
spare 0a.42 0a 2 10 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)
spare 0a.43 0a 2 11 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)
spare 0a.44 0a 2 12 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)
spare 0a.45 0a 2 13 FC:A - ATA 7200 635555/1301618176 635858/1302238304 (zeroing, 2% done)

cherry-top# aggr status -v
Aggr State Status Options
aggr1 creating raid_dp, aggr nosnap=off, raidtype=raid_dp,
initializing raidsize=14,
ignore_inconsistent=off,
snapmirrored=off,
resyncsnaptime=60,
fs_size_fixed=off,
snapshot_autodelete=off,
lost_write_protect=off
Volumes:

Plex /aggr1/plex0: offline, empty, active

Cluster giveback cancelled or waiting

2011-03-04T22:18:00.000-08:00

Cluster node is down and waiting for giveback. Trying to perform a cf giveback from the partner which has taken over generates the following error message:

filer(takeover)> cf giveback
filer(takeover)> Thu Dec 21 21:01:55 EST [filer (takeover): cf_main:error]: Backup/restore services: There are active backup/restore sessions on the partner.
Thu Dec 21 21:01:55 EST [filer (takeover): cf.misc.operatorGiveback:info]:
Cluster monitor: giveback initiated by operator
Thu Dec 21 21:01:55 EST [filer (takeover): snapmirror.givebackCancel:error]: SnapMirror currently transferring or in-sync, cancelling giveback.
Thu Dec 21 21:01:55 EST [filer (takeover): cf.rsrc.givebackVeto:error]: Cluster monitor: snapmirror: giveback cancelled due to active state
Thu Dec 21 21:01:55 EST [filer (takeover): cf.rsrc.givebackVeto:error]: Cluster monitor: dump/restore: giveback cancelled due to active state
Thu Dec 21 21:01:55 EST [filer (takeover): cf.fm.givebackCancelled:warning]: Cluster monitor: giveback cancelled

To resolve, make sure the following outputs has no existing relationships or active sessions.

# snapmirror status -l
# snapvault status
# ndmpd status (kill any active sessions)

Issue cf giveback on the system after confirming all the above steps are verified.

World’s first shipping 7200 RPM 3TB enterprise-class HDD from Hitachi

2011-02-20T09:27:00.000-08:00

The Hitachi Ultrastar™ 7K3000 is the world’s first and only 7200 RPM hard drive rated at 2.0 million hours MTBF and backed by a five-year limited warranty. The Ultrastar 7K3000 represents the fifth-generation Hitachi 5-platter mechanical design, first introduced in 2004, and has been field proven by top server and storage OEMs as well as leading Internet giants. When the highest quality and reliability are a top requirement, customer field data proves that the Ultrastar 7K3000 delivers by reducing downtime, eliminating service calls and keeping TCO to a minimum. Engineered for the highest reliability, the Ultrastar 7K3000 is not only put through grueling design tests during development but must also pass stringent ongoing reliability testing during manufacturing. Across the entire Ultrastar family, world-class quality control, combined with scientific root-cause analysis and multi-faceted corrective actions, ensure that Hitachi GST remains the recognized leader in quality and reliability for enterprise-class hard drives.

Highlights:

• 2.0 million hours MTBF
• Up to 3 terabytes of capacity
• 6Gb/s SATA and 6Gb/s SAS models for configuration flexibility
• Dual Stage Actuator (DSA) and Enhanced Rotational Vibration Safeguard (RVS) for robust performance in multi-drive environments
• 24x7 accessibility for enterprise-class, capacity-optimized applications
• 5-year limited warranty

Product Documentation : http://www.hitachigst.com/tech/techlib.nsf/products/Ultrastar_7K3000

Minimum size for root FlexVol volumes

2011-02-12T22:18:00.000-08:00

Storage system model Minimum root FlexVol volume size

FAS250 9 GB

FAS270 10 GB

FAS920 12 GB

FAS940 14 GB

FAS960 19 GB

FAS980 23 GB

FAS3020 12 GB

FAS3050 16 GB

F87 8 GB

F810 9 GB

F825 10 GB

F840 13 GB

F880 13 GB

R100-12TB 13 GB

R100-24TB 19 GB

R100-48TB 30 GB

R100-96TB 53 GB

R150 19 GB

R200 19 GB

All about /etc/rc file

2011-01-27T22:24:00.000-08:00

The /etc/rc file contains commands that the storage system executes at boot time to configure the system.

What startup commands do

Startup commands are placed into the /etc/rc file automatically after you run the setup command or the Setup Wizard.

Commands in the /etc/rc file configure the storage system to
1) Communicate on your network
2) Use the NIS and DNS services
3) Save the core dump that might exist if the storage system panicked before it was booted

Default /etc/rc file contents

To understand the commands used in the /etc/rc file on the root volume, examine the following sample /etc/rc file, which contains default startup commands:

#Auto-generated /etc/rc

hostname filerA
ifconfig e0 `hostname`-0
ifconfig e1 `hostname`-1
ifconfig a0 `hostname`-a0
ifconfig a1 `hostname`-a1
route add default MyRouterBox
routed on
savecore

Explanation of default /etc/rc contents

Description : hostname filerA
Sets the storage system host name to "filerA."

Description :
ifconfig e0 `hostname`-0
ifconfig e1 `hostname`-1
ifconfig a0 `hostname`-a0

ifconfig a1 `hostname`-a1
Sets the IP addresses for the storage system network interfaces with a default network mask.
The arguments in single backquotes expand to "filerA" if you specify "filerA" as the host name during setup. The actual IP addresses are obtained from the /etc/hosts file on the storage system root volume. If you prefer to have the actual IP addresses in the /etc/rc file, you can enter IP addresses directly in /etc/rc on the root volume.

Description: route add default MyRouterBox

Specifies the default router. You can set static routes for the storage system by adding route commands to the /etc/rc file. The network address for MyRouterBox must be in /etc/hosts on the root volume.

Description : routed on

Starts the routing daemon.

Description: savecore
Saves the core file from a system panic, if any, in the /etc/crash directory on the root volume. Core files are created only during the first boot after a system panic.

BaseBoard Management Controller (BMC) setup

2011-01-14T13:49:00.000-08:00

You can manage your storage system locally from an Ethernet connection by using any network interface. However, to manage your storage system remotely, the system should have a Remote LAN Module (RLM) or Baseboard Management Controller (BMC). These provide remote platform management capabilities, including remote access, monitoring, troubleshooting, and alerting features.

cherrytop# bmc setup

The Baseboard Managment Controller (BMC) provides remote managment capabilities
including console redirection, logging and power control.
It also extends autosupport by sending down filer event alerts

Would you like to configure the BMC? (y/n)? y
Would you like to enable DHCP on BMC LAN interface? (y/n)? n
Please enter the IP address for the BMC [0.0.0.0]: x.x.x.x
Please enter the netmask for the BMC [0.0.0.0]: x.x.x.x
Please enter the IP address for the BMC gateway [0.0.0.0]: x.x.x.x
Please enter the gratuitous ARP Interval for the BMC [10 sec (max 60)]:

The BMC is setup successfully.

The following commands are available; for more information
type "bmc help "
bmc help

bmc setup

bmc status

bmc test
bmc reboot

This can be done online and is transparent to the Filer/servers connected to the NetApp Array.

How to expand an A- SIS enabled volume that is nearing the "vol size" limit

2010-12-20T21:40:00.000-08:00

WARNING: If this is being performed to free up space to bring a LUN back online, another method of cleaning up space should be considered, such as deleting snapshots and disabling automatic snapshots until a maintenance window can be scheduled as the 'undo' process can take a significant amount of time.

To increase the size of an A-SIS enabled volume beyond the maximum limit for A-SIS, the A-SIS service must be turned off and the changes undone. Undoing A-SIS will re-inflate the file system and could require more disk space than is available in the A-SIS enabled volume. There is no way to expand the volume size until the undo is completed, so the recommended course of action is to create and use a temporary volume and migrate data necessary to free enough space for the re-inflation to complete.WARNING: Once the volume is grown beyond the maximum size supported for A-SIS, A-SIS will be disabled.

WARNING: Disabling A-SIS will require additional disk space as files will be undeduplicated.

WARNING: Using "sis undo" may require rebaselining of snapmirror or snapvault relationships.

Complete the following steps to undo A-SIS:

Note: The undo must be performed from diag mode. The sis undo command can take some time (hours) based on how much data is being un-deduped and the filer type.

1- Enter df -s
Note the space saved, this is the amount of space that will be necessary for the re-inflation.
2 - Enter df
Note the available space. If it is not greater than or equal to the space saved found in the previous output, space will need to be cleared using other methods to complete the undo (e.g., deleting Snapshots or migrating data).
3 - Enter sis off
4 - Enter priv set diag
5 - Enter sis undo

Once the undo is complete, the volume will be a normal FlexVol volume that can be expanded.

When trying to access the filer using a NetBIOS alias, error message: Decrypt integrity check failed

2010-12-20T14:05:00.000-08:00

When trying to access the filer's NetBIOS alias, the following error messages are generated:

[auth.trace.authenticateUser.krbReject:info]: AUTH: Login attempt from 10.20.1.13 rejected by Kerberos.
[cifs.trace.GSSinfo:info]: AUTH: notice- Could not authenticate user.
[cifs.trace.GSSinfo:info]: AUTH: notice- Decrypt integrity check failed.

Issue
The Active Directory had a stale computer account that had the same name as the NetBIOS alias used to contact the filer. The NetBIOS alias may have been created in the Active Directory during vFiler testing, but the account had not been removed.

Check the following:
1. Check for another account in the same AD forest that has the same name as the filer. This can either be a stale account (left over from a previous situation), or another machine.

2. The reason you can connect when you specify an IP address is that the client uses NTLM instead of Kerberos in that situation. When the client gets a Kerberos ticket, it is most likely getting a ticket for the wrong machine.

How to Reboot / Reset an HP Blade iLO2

2010-12-03T22:24:00.000-08:00

Every once and awhile an iLO2 Remote Control session will get "stuck". By this I mean when you try to connect, it will say that there is a session already in progress. A reboot of the iLO2 will clear this state. To restart the iLO2, follow these steps.

* From the Web Administration page for the iLO2, you should be on the System Status tab by default
* Click Diagnostics on the left hand side
* On the bottom of this page is a Reset button for the iLO2