Repair-VirtualDisk on Storage Spaces simple volume with retired disk?

Hello,
Does anyone know if it's possible to retire a disk from a Storage Space simple volume, and use the Repair-VirtualDisk commandlet to migrate any data off the retired volume? It sounds like this is how it would work for a parity volume, but it's unclear if
Windows will try to move data off a retired disk of a simple volume. Or is repair actually performing parity recovery?
i.e. I want to replace disks in a simple volume with larger disks, and remove the old disks, is creating a new volume and migrating data the only way?
Thank you!

Hi,
Simple spaces are not resilient to disk failures, so we cannot add a new physical disk to replace the failed physical disk.
If you have backed up the files in that virtual disk, you could delete the disk then remove physical disks from the pool.
For more detailed information, please see:
Storage Spaces - Remove Physical Disk
https://social.technet.microsoft.com/Forums/windowsserver/en-US/dbbf317b-80d2-4992-b5a9-20b83526a9c2/storage-spaces-remove-physical-disk?forum=winserver8gen
Best Regards,
Mandy
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]

Similar Messages

Windows Server 2012 Storage Spaces Simple RAID 0 VERY SLOW reads, but fast writes with LSI 9207-8e SAS JBOD HBA Controller

Has anyone else seen Windows Server 2012 Storage Spaces with a Simple RAID 0 (also happens with Mirrored RAID 1 and Parity RAID 5) virtual disk exhibiting extremely slow read speed of 5Mb/sec, yet write performance is normal at 650Mb/sec in RAID 0?
Windows Server 2012 Standard
Intel i7 CPU and Motherboard
LSI 9207-8e 6Gb SAS JBOD Controller with latest firmware/BIOS and Windows driver.
(4) Hitachi 4TB 6Gb SATA Enterprise Hard Disk Drives HUS724040ALE640
(4) Hitachi 4TB 6Gb SATA Desktop Hard Disk Drives HDS724040ALE640
Hitachi drives are directly connected to LSI 9207-8e using a 2-meter SAS SFF-8088 to eSATA cable to six-inch eSATA/SATA adapter.
The Enterprise drives are on LSI's compatibility list. The Desktop drives are not, but regardless, both drive models are affected by the problem.
Interestingly, this entire configuration but with two SIIG eSATA 2-Port adapters instead of the LSI 9207-8e, works perfectly with both reads and writes at 670Mb/sec.
I thought SAS was going to be a sure bet for expanding beyond the capacity of port limited eSATA adapters, but after a week of frustration and spending over $5,000.00 on drives, controllers and cabling, it's time to ask for help!
Any similar experiences or solutions?

Has anyone else seen Windows Server 2012 Storage Spaces with a Simple RAID 0 (also happens with Mirrored RAID 1 and Parity RAID 5) virtual disk exhibiting extremely slow read speed of 5Mb/sec, yet write performance is normal at 650Mb/sec in RAID 0?
Windows Server 2012 Standard
Intel i7 CPU and Motherboard
LSI 9207-8e 6Gb SAS JBOD Controller with latest firmware/BIOS and Windows driver.
(4) Hitachi 4TB 6Gb SATA Enterprise Hard Disk Drives HUS724040ALE640
(4) Hitachi 4TB 6Gb SATA Desktop Hard Disk Drives HDS724040ALE640
Hitachi drives are directly connected to LSI 9207-8e using a 2-meter SAS SFF-8088 to eSATA cable to six-inch eSATA/SATA adapter.
The Enterprise drives are on LSI's compatibility list. The Desktop drives are not, but regardless, both drive models are affected by the problem.
Interestingly, this entire configuration but with two SIIG eSATA 2-Port adapters instead of the LSI 9207-8e, works perfectly with both reads and writes at 670Mb/sec.
I thought SAS was going to be a sure bet for expanding beyond the capacity of port limited eSATA adapters, but after a week of frustration and spending over $5,000.00 on drives, controllers and cabling, it's time to ask for help!
Any similar experiences or solutions?
1) Yes, being slow either on reads or on writes is a quite common situation for storage spaces. See references (with some of the solutions I hope):
http://social.technet.microsoft.com/Forums/en-US/winserverfiles/thread/a58f8fce-de45-4032-a3ef-f825ee39b96e/
http://blogs.technet.com/b/askpfeplat/archive/2012/10/10/windows-server-2012-storage-spaces-is-it-for-you-could-be.aspx
http://social.technet.microsoft.com/Forums/en-US/winserver8gen/thread/64aff15f-2e34-40c6-a873-2e0da5a355d2/
and this one is my favorite putting a lot of light on the issue:
http://helgeklein.com/blog/2012/03/windows-8-storage-spaces-bugs-and-design-flaws/
2) Issues with SATA-to-SAS hardware is also very common. See:
http://social.technet.microsoft.com/Forums/en-US/winserverClustering/thread/5d4f68b7-5fc4-4a3c-8232-a2a68bf3e6d2
StarWind iSCSI SAN & NAS

Storage spaces simple mirror question

I just have a simple mirror at the moment, with just two 1tb drives in mirror mode, and it works just fine. Two things I do wonder. If one drive fails, I assume the files would be preserved on the other. I wonder however if it can be plugged
into another Windows box, a Windows 7 machine for example, and read by that machine, or if it can only be read by the machine on which it was setup?
I have assumed Storage Spaces was like hardware raid in this way, but now I wonder....

Hi,
For mirror mode, it means that Data is duplicated on two or three physical disks, and this storage layout requires at least two disks to protect you from a single disk failure.
But you can't view the content in the disk since Storage Spaces records information about pools and storage spaces on the physical disks that compose the storage pool. Therefore, your pool and storage spaces are preserved when you move an entire storage
pool and its physical disks from one computer to another.
Windows Server 2012 starts storage that could potentially be shared with a cluster in a safe state. For Storage Spaces, that means the first time Windows connects to a storage pool, the pool starts as read-only and the storage spaces will start in a detached
state. To access your data, you must set the storage pool to read-write and then attach the storage spaces.
These steps do not apply to Windows 8 – storage pools start as read-write and storage spaces start as attached.
Kate Li
TechNet Community Support

Storage spaces + Hyper-V with multiple 1GBe nics for storage?

Hi guys!
So I just got my private cloud hardware. I actually put in the order before summer, but due to firmware and certification issues on my desired SuperMicro JBODs delivery was seriously delayed. So much that I've completely forgotten my networking ideas. I
need help/verification. Or at least a URL - most described setups are 10 GBe nowadays... Or even a "not gonna work" :-)
My setup is supposed to be a 3 JBOD, 2 head node storage spaces/sfos cluster providing storage to a 4 node Hyper-V cluster. I didn't have a budget for a 10 GBe setup, but got a great price on a lot of 1 GBe nics. After allocating management, Hyper-V, etc
I have 3x 1 GBe ports left on all Hyper-V and Storage servers.
I think my original plan was to create three subnets and add one nic from each server. And then I guess I've imagined some kind of SMB3 magic discovering these paths between Hyper-V and storage and just aggregating bandwitdh and providing fault tolerance
by sprinkling fairy dust. Must have been the heat...
So now I'm "replanning" and I realize that I'm going to create a failover cluster at the storage level providing a cluster name and IP. I'm thinking the management subnet where domain info resides is appropriate, but then what about the other three
subnets? I don't want to flood my management subnet with storage traffic, but do want bandwidth and resilience. Did I make a design error, and how do I make the best of the situation?
Disclaimer: My previous experience on virtualization clusters is ISCSI SAN and 2008 R2 Hyper-V clusters. Storage Spaces is completely new to me :-)
And due to overlapping technologies I struggled a bit on placing this thread. Hope I got it right

Hello,
i did not understand how many NICs you have in each Host. Hyper-V Cluster with 1 GBe NICs work as long as you know that it is not 10 GBe.
In this article is the complete Hyper-V Cluster design in checklist form. I think you should work with this list for some further ideas:
http://blogs.technet.com/b/askpfeplat/archive/2013/03/10/windows-server-2012-hyper-v-best-practices-in-easy-checklist-form.aspx
Sorry that i cant give a better answer, but i lack information about about your environment.
Regards,
Thomas
Thomas Hanrath [MCT | Regional Lead Germany] |
http://www.hanrath.de
Microsoft Learning Blog |
http://blog.microsoftlearning.de
MCSE | Private Cloud

When I look at my Ipod on Itunes on my laptop it is showing that I have a large amount of storage space taken up with Apps. (more than my music). In fact I only have the Apps which came with the ipod touch! How do I get my storage back?

I have an ipod touch 64GB. I have 3,146 songs, 3 videos, 106 photos and 1 app. The capacity of my ipod is 58 GB (I guess the remainder is the OS), It says I have 7.6GB remaining. When I look at my ipod on Itunes on my laptop the bar at the bottom shows a huge amount of storage space is taken up by Apps. I don't have any apps apart from the ones which came with the ipod touch which I cannot erase and wouldnt really want to. I am baffled why it says so much storage has been taken up by Apps! Please help me!!!

Connect the iPod to your computer and look at the storage used by the various categories as shown in the colored bargarph in iTunes.
Come back with the results.
An "other" larger than about 1 1/2 GB usually indicates that the "other" includes corrupted files. Usually restoring from backup eliminated the corrupted files. However, sometimes restoring to factory settings/new iPod is required.
To restore from backup see:
iOS: How to back up
To restore to factory settings/new iPod see:
iTunes: Restoring iOS software

Unable to repair degraded Virtual disks in Storage Spaces under Hyper-V 2012 R2 Core

Hi all,
I am finding myself in the following conundrum. I have a storage pool under Hyper-V Core, with 2 2TB Seagate drives.
One of the drives completely died (wouldn't spin up, tried it in a different box, still to no avail). I sent it in to Seagate for warranty replacement, got the new drive. Installed it and went through the notions of adding it to the pool and retiring the
one that was with "Lost Communication" status.
Tried to repair the virtual disks that are showing as "Unhealthy-Detached", quickly get 100% complete, but the repair didnt work.
The storage pool is in degraded state.
Looks like metadata is corrupted.
Followed this post to upgrade Storage Spaces to latest version:
https://social.technet.microsoft.com/Forums/windowsserver/en-US/eead59e9-5e49-4bb6-8cbb-1dafddd9576b/unable-to-repair-degraded-virtual-disks-in-storage-spaces-2012r2?forum=winserverfiles
Still, to no avail.
Couple of questions:
1) Is the data on the 3 virtual disks in state "Unhealthy: Detached" not recoverable?
2) How can I get the storage pool back to "healthy"?
Any help will be greatly appreciated.
PS C:\corefig> Get-PhysicalDisk | ? OperationalStatus -ne OK | fl
ObjectId : {1}\\HV001\root/Microsoft/Windows/Storage/Pr
oviders_v2\SPACES_PhysicalDisk.ObjectId="{95
42513c-a0d4-11e3-8123-806e6f6e6963}:PD:{7e22
245f-0cf6-11e3-b1db-806e6f6e6963}"
PassThroughClass :
PassThroughIds :
PassThroughNamespace :
PassThroughServer :
UniqueId :
AllocatedSize : 1218696970240
BusType : Unknown
CannotPoolReason : In a Pool
CanPool : False
Description :
DeviceId :
EnclosureNumber :
FirmwareVersion :
FriendlyName : PhysicalDisk-1
HealthStatus : Warning
IsIndicationEnabled :
IsPartial : False
LogicalSectorSize : 0
Manufacturer :
MediaType : UnSpecified
Model :
OperationalStatus : Lost Communication
OtherCannotPoolReasonDescription :
PartNumber :
PhysicalLocation :
PhysicalSectorSize : 0
SerialNumber :
Size : 1999575711744
SlotNumber :
SoftwareVersion :
SpindleSpeed : 0
SupportedUsages : {Auto-Select, Manual-Select, Hot Spare,
Retired...}
Usage : Retired
PSComputerName :
PS C:\corefig> get-physicaldisk
FriendlyName CanPool OperationalS HealthStatus Usage Size
tatus
PhysicalDisk4 False OK Healthy Auto-Select 73.75 GB
PhysicalDisk0 False OK Healthy Auto-Select 1.82 TB
PhysicalDi... False Lost Comm... Warning Retired 1.82 TB
PhysicalDisk2 False OK Healthy Auto-Select 930.75 GB
PhysicalDisk3 False OK Healthy Auto-Select 74.53 GB
PhysicalDisk1 False OK Healthy Auto-Select 1.82 TB
PS C:\corefig> get-virtualdisk -friendlyname 'Data' |FC
class CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_VirtualDisk
ObjectId = {1}\\HV001\root/Microsoft/Windows/Storage/Providers_v2\SPACES_Virt
ualDisk.ObjectId="{9542513c-a0d4-11e3-8123-806e6f6e6963}:VD:{3debf056-01f1-11
e3-b1d6-001fbc081884}{7e2229cf-0cf6-11e3-b1db-001fbc081884}"
PassThroughClass =
PassThroughIds =
PassThroughNamespace =
PassThroughServer =
UniqueId = CF29227EF60CE311B1DB001FBC081884
Access = Read/Write
AllocatedSize = 548413636608
DetachedReason = Incomplete
FootprintOnPool = 1096827273216
FriendlyName = Data
HealthStatus = Unhealthy
Interleave = 262144
IsDeduplicationEnabled = False
IsEnclosureAware = False
IsManualAttach = False
IsSnapshot = False
LogicalSectorSize = 512
Name =
NameFormat =
NumberOfAvailableCopies =
NumberOfColumns = 1
NumberOfDataCopies = 2
OperationalStatus = Detached
OtherOperationalStatusDescription =
OtherUsageDescription =
ParityLayout = Unknown
PhysicalDiskRedundancy = 1
PhysicalSectorSize = 4096
ProvisioningType = Thin
RequestNoSinglePointOfFailure = False
ResiliencySettingName = Mirror
Size = 1099511627776
UniqueIdFormat = Vendor Specific
UniqueIdFormatDescription =
Usage = Other
WriteCacheSize = 0
PSComputerName =
PS C:\corefig> get-virtualdisk -friendlyname 'Backups' |FC
class CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_VirtualDisk
ObjectId = {1}\\HV001\root/Microsoft/Windows/Storage/Providers_v2\SPACES_Virt
ualDisk.ObjectId="{9542513c-a0d4-11e3-8123-806e6f6e6963}:VD:{3debf056-01f1-11
e3-b1d6-001fbc081884}{7e22255e-0cf6-11e3-b1db-001fbc081884}"
PassThroughClass =
PassThroughIds =
PassThroughNamespace =
PassThroughServer =
UniqueId = 5E25227EF60CE311B1DB001FBC081884
Access = Read/Write
AllocatedSize = 743566213120
DetachedReason = Incomplete
FootprintOnPool = 1487132426240
FriendlyName = Backups
HealthStatus = Unhealthy
Interleave = 262144
IsDeduplicationEnabled = False
IsEnclosureAware = False
IsManualAttach = False
IsSnapshot = False
LogicalSectorSize = 512
Name =
NameFormat =
NumberOfAvailableCopies =
NumberOfColumns = 1
NumberOfDataCopies = 2
OperationalStatus = Detached
OtherOperationalStatusDescription =
OtherUsageDescription =
ParityLayout = Unknown
PhysicalDiskRedundancy = 1
PhysicalSectorSize = 4096
ProvisioningType = Thin
RequestNoSinglePointOfFailure = False
ResiliencySettingName = Mirror
Size = 1649267441664
UniqueIdFormat = Vendor Specific
UniqueIdFormatDescription =
Usage = Other
WriteCacheSize = 0
PSComputerName =
PS C:\corefig> get-virtualdisk -friendlyname 'Music' |FC
class CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_VirtualDisk
ObjectId = {1}\\HV001\root/Microsoft/Windows/Storage/Providers_v2\SPACES_Virt
ualDisk.ObjectId="{9542513c-a0d4-11e3-8123-806e6f6e6963}:VD:{3debf056-01f1-11
e3-b1d6-001fbc081884}{7e2238b9-0cf6-11e3-b1db-001fbc081884}"
PassThroughClass =
PassThroughIds =
PassThroughNamespace =
PassThroughServer =
UniqueId = B938227EF60CE311B1DB001FBC081884
Access = Read/Write
AllocatedSize = 39728447488
DetachedReason = By Policy
FootprintOnPool = 79456894976
FriendlyName = Music
HealthStatus = Unknown
Interleave = 262144
IsDeduplicationEnabled = False
IsEnclosureAware = False
IsManualAttach = True
IsSnapshot = False
LogicalSectorSize = 512
Name =
NameFormat =
NumberOfAvailableCopies =
NumberOfColumns = 1
NumberOfDataCopies = 2
OperationalStatus = Detached
OtherOperationalStatusDescription =
OtherUsageDescription =
ParityLayout = Unknown
PhysicalDiskRedundancy = 1
PhysicalSectorSize = 4096
ProvisioningType = Thin
RequestNoSinglePointOfFailure = False
ResiliencySettingName = Mirror
Size = 161061273600
UniqueIdFormat = Vendor Specific
UniqueIdFormatDescription =
Usage = Other
WriteCacheSize = 0
PSComputerName =
PS C:\corefig> get-virtualdisk -friendlyname 'Videos' |FC
class CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_VirtualDisk
ObjectId = {1}\\HV001\root/Microsoft/Windows/Storage/Providers_v2\SPACES_Virt
ualDisk.ObjectId="{9542513c-a0d4-11e3-8123-806e6f6e6963}:VD:{3debf056-01f1-11
e3-b1d6-001fbc081884}{7e2225bc-0cf6-11e3-b1db-001fbc081884}"
PassThroughClass =
PassThroughIds =
PassThroughNamespace =
PassThroughServer =
UniqueId = BC25227EF60CE311B1DB001FBC081884
Access = Read/Write
AllocatedSize = 223606734848
DetachedReason = Incomplete
FootprintOnPool = 447213469696
FriendlyName = Videos
HealthStatus = Unhealthy
Interleave = 262144
IsDeduplicationEnabled = False
IsEnclosureAware = False
IsManualAttach = False
IsSnapshot = False
LogicalSectorSize = 512
Name =
NameFormat =
NumberOfAvailableCopies =
NumberOfColumns = 1
NumberOfDataCopies = 2
OperationalStatus = Detached
OtherOperationalStatusDescription =
OtherUsageDescription =
ParityLayout = Unknown
PhysicalDiskRedundancy = 1
PhysicalSectorSize = 4096
ProvisioningType = Thin
RequestNoSinglePointOfFailure = False
ResiliencySettingName = Mirror
Size = 1759325978624
UniqueIdFormat = Vendor Specific
UniqueIdFormatDescription =
Usage = Other
WriteCacheSize = 0
PSComputerName =

Hi omon_77,
You can first refer the following step by step third party article and KB:
Replace Failed Disks and Repair JBODs for Storage Spaces in Windows Server
https://technet.microsoft.com/en-us/library/dn782852.aspx?f=255&MSPPError=-2147217396
Replacing a failed disk in Windows Server 2012 Storage Spaces with PowerShell
https://www.hodgkins.net.au/storage/replace-failed-disk-in-storage-spaces-pool-with-powershell/
Step By Step: How to Replace Faulty Disk In Two-Way Mirrored Storage Tiered Space
http://charbelnemnom.com/2014/09/step-by-step-how-to-replace-faulty-disk-in-two-way-mirrored-storage-tiered-space-storagespaces-ws2012r2/
More information:
Storage Spaces - Designing for Performance
http://social.technet.microsoft.com/wiki/contents/articles/15200.storage-spaces-designing-for-performance.aspx
Storage Spaces Overview
http://technet.microsoft.com/en-us/library/hh831739.aspx
Windows Server Storage Spaces: What is it and why should I use it?
http://curah.microsoft.com/5049/windows-server-2012-r2-storage-spaces-what-is-it-and-why-should-i-use-it
I’m glad to be of help to you!
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

Extend System Simple Volume to Non-Contiguous Unallocated Space

Hi:
I have a Windows Server 2008 R2 virtual machine for which I need to extend the system simple volume on a dynamic disk to non-contiguous unallocated space. I realize 2008 Disk Manager and diskpart cannot accomplish this but that some 3rd party tools
can get the job done. Does anyone recommend a specific 3rd party application that they've used for this purpose successfully, or any horror stories/products to stay away from?
Thank you!
Bob Herman IT Tropolis

Hi,
Microsoft does not provide third party software, you can backup the partition which is contiguous with system simple volume and delete it. Then, merge unallocated space to the system simple volume with Disk Management snap-in.
Best Regards,
Mandy
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Existing storage spaces: what happens if I reinstall Windows?

Hi everybody, I'm considering using Windows 8 "storage
spaces" to combine two external disks with 2-way mirroring. What will happen if, for some reason, my OS disk is no longer available. How will a fresh
installation of Windows 8 react to an existing storage space? Will it automatically recognise the storage space or does the storage space configuration rely on state stored on the OS disk?
Thank you!
Daniele

Hi,
This article may also helpful to you:
http://social.technet.microsoft.com/wiki/contents/articles/11382.storage-spaces-frequently-asked-questions-faq.aspx
Hope that helps.
Leo Huang
TechNet Community Support

Storage Space - Unable to view exported Mirrored REFS volume over ISCSI Target in Vmware, but works with Simple Volume. Is this expected

Followed Steps:
1. Created a Storage Pool Combination of SSD and HHD.
2. Created Virtual Disk, with mirror and without tiered.
3. Created a volume using virtual disk.
4. Created New ISCSI Virtual disk and exported to VMware.
Result:
1. Unable to view the Lun, If I create using the mirror.
2. Can able to view it, When I create simple volume.

Hi Mara Ram,
Before going further, would you please let me know which version of Windows Server you use?
In my Lab environment, I followed steps as you described. However, I can view the Lun when create by using
storage layout: Mirror. Just one different point, I created the new iSCI virtual disk and exported to a Hyper-V (not VMware) virtual machine. Please check if it was the cause of this issue.
If any update, please feel free to let me know.
Hope this helps.
Best regards,
Justin Gu

Storage Spaces - volume with deduplication always flagged as "online filesystem check needed"

Hi,
I am using Storage Pools and we have quite some Volumes on them.
I am noticing an warning to do an online check of a Volume on 2 volumes where dedup is activated.
If I do the check, all is fine for about 10-30 minutes, and it's flagged again to be checked. It never sais it needs any repair.
The odd thing is, other volumes without DEDUP don't show this behaviour.
What could cause this error?
- Disk Space is enough available.
- Logs don't tell a lot. We have quite some entries with low disc space, but as there are volumes with DPM on this machine, it's referencing DPM Volumes with low disc space warnings. (Info - no DEDUP activated on DPM Volumes as it's not supported).
So basically why are deduped volumes (successful deduped with over 40 %), always in a state that needs a check?
Thanks
Patrick

I have the same problem.
In upgrading the storage pool from 2012 to 2012 R2 (new installation).
It looks good
Try a variety of methods, the last one is garbage collection.
I looked inside tips Best Practices Analyzer does not clean up the garbage, so try.
PS script (requires administrator privileges)
Get-Volume
#Replace the letter H
repair-volume -DriveLetter H -Scan
#Replace the letter H
Start-DedupJob H: –Type GarbageCollection -full -Memory 50
Get-DedupJob
G yc {Son of VB.NET}

Repair Degraded Storage Spaces Virtual Disk - All physical disks show healthy

I've seen this mentioned a few times but no definitive answers. I have a Storage Pool with 8 physical disks. Each physical disk shows as healthy and auto select. I have thick provisioned Virtual Disk created on this Storage Pool in a parity configuration.
This virtual disk is configured for the maximum amount on the storage pool. 50% of the space is available on the volume of the virtual disk...I click repair it does nothing.
Tested yanking a physical disk. Virtual disk becomes unavailable. No redundancy currently. How the heck do I fix this???

Hi,
First please try to run a repair again with Powershell cmdlet:
Repair-VirtualDisk
If issue still exists please try optimize to see if it will help:
Optimize-Volume
If you have any feedback on our support, please send to [email protected].
Repair-VirtualDisk:
Runs shows a progress bar for a very short period of time. Goes back to prompt. No messages or errors. Running Get-Virtual disk still shows the VD as degraded.
Optimize-Volume:
PS C:\Users\Administrator> Optimize-Volume -driveletter D -analyze -defrag -verbose
VERBOSE: Invoking defragmentation on DATA (D:)...
Optimize-Volume : A general error occurred that is not covered by a more specific error code.
At line:1 char:1
+ Optimize-Volume -driveletter D -analyze -defrag -verbose
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (MSFT_Volume (Ob...8-8907-3485...):ROOT/Microsoft/...age/MSFT_Volume) [Opt
imize-Volume], CimException
+ FullyQualifiedErrorId : HRESULT 0x89000000,Optimize-Volume
PS C:\Users\Administrator> Optimize-Volume -driveletter D -analyze -defrag -verbose
VERBOSE: Invoking defragmentation on DATA (D:)...
Optimize-Volume : A general error occurred that is not covered by a more specific error code.
At line:1 char:1
+ Optimize-Volume -driveletter D -analyze -defrag -verbose
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (MSFT_Volume (Ob...8-8907-3485...):ROOT/Microsoft/...age/MSFT_Volume) [Opt
imize-Volume], CimException
+ FullyQualifiedErrorId : HRESULT 0x89000000,Optimize-Volume
PS C:\Users\Administrator> Optimize-Volume D -analyze -verbose
VERBOSE: Invoking analysis on DATA (D:)...
Optimize-Volume : A general error occurred that is not covered by a more specific error code.
At line:1 char:1
+ Optimize-Volume D -analyze -verbose
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (MSFT_Volume (Ob...8-8907-3485...):ROOT/Microsoft/...age/MSFT_Volume) [Opt
imize-Volume], CimException
+ FullyQualifiedErrorId : HRESULT 0x89000000,Optimize-Volume
PS C:\Users\Administrator> Optimize-Volume D -Verbose
VERBOSE: Invoking defragmentation on DATA (D:)...
Optimize-Volume : A general error occurred that is not covered by a more specific error code.
At line:1 char:1
+ Optimize-Volume D -Verbose
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (MSFT_Volume (Ob...8-8907-3485...):ROOT/Microsoft/...age/MSFT_Volume) [Opt
imize-Volume], CimException
+ FullyQualifiedErrorId : HRESULT 0x89000000,Optimize-Volume
Both error out...

How can I configure ReFS to NOT fail read operations when a checksum error is detected (on non-Storage-Spaces volumes where data integrity streams are enabled)?

According to William Stanek, in his Windows Server 2012 R2 Inside Out: Configuration, Storage & Essentials book, this is apparently possible: (pg. 615 - here it is on Google Books: https://books.google.ca/books?id=0IyfBAAAQBAJ&pg=PT819&lpg=PT819&dq=read+operation )
Integrity can be enabled when the system is not running on Storage Spaces. When
integrity is enabled and ReFS detects a checksum mismatch, ReFS logs an event and
fails the read operation by default. If you don’t want the read operation to fail, you
can configure ReFS to continue with the read operation. A related event will be logged
regardless.
So then how do I configure it to do that???
(And just to make it super-clear, I'm NOT using Storage Spaces, so there is no redundancy via mirroring/parity, and I'm not expecting any file repair - just detection of corruption. It's just a basic volume formatted with ReFS and
with integrity streams enabled, via format E: /fs:ReFS /i:enabled
For those who want more details, here's the situation:
I try to perform a read operation on a file with corrupted data (purposely done for testing using a low-level disk editor), I get a the following error message:
And an event ID 133 from ReFSv1 gets logged in the System log:
Clicking "Try Again" just brings up the same message, and clicking "Skip" skips the operation entirely.
This is indeed the correct default behaviour.
What I want instead is for the read operation to be allowed to complete, with corrupt data and all, and ONLY for the event to be logged. And according to William Stanek, this is supposed to be configurable somewhere - and after hours of searching, I haven't
been able to find anything.

Hi Tommy,
>>How can I configure ReFS to NOT fail read operations when a checksum error is detected
We can use PowerShell command Set-FileIntegrity to configure this. The specific parameter for controlling this behavior is
-Enforce <Boolean>which indicates whether to enable blocking access to a file if integrity streams do not match the data.
Regarding this point, the following article can be referred to as reference.
Set-FileIntegrity
https://technet.microsoft.com/en-us/library/jj218351.aspx
Best regards,
Frank Shen
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MacBook Pro Retina with a 500gb hard drive - 400gb storage space?

I have a MacBook Pro Retina with a 500gb hard drive. I recently deleted a windows 8 partition, and now my macbook says its total storage capacity is 399.42gb. Is this normal? Or am I missing 100gb storage space?
When I deleted the partition through boot camp, there was an error, but the boot camp partition seemed to have been deleted completely. I ran disk utility repair and single user mode command prompt /sbin/fsck -fy to make sure my disk was properly partitioned, but it still shows 399.42gb total storage in my "About This Mac".

You did not remove your Windows partition correctly. You need to remove it using Boot Camp Assistant. If you cannot then you will need to repartition the entire drive back to a single partition/volume.

Unable to repair degraded Virtual disks in Storage Spaces 2012R2

Hi all,
I have an anoying problem that I cannot seems to find a solution for.
I have a 2 node Failover Cluster with CSV-volumes consisting of 2 HP DL360 servers with 2 LSI 9300-16e HBAs each, connected to 3 Supermicro JBOD-cases with a total of 84 disks. With Storage spaces I have made 1 Pool with 6 virtual disks and 3 of these disks
are Degraded. However, when I look at the physical disks they are all fine and healthy, if I try to repair the disks it finishes without any error messages but the disk is still Degraded.
OS = Windows Server 2012R2
Anyone have an idea?
Thanks!

Hello Partner,
Thanks so much for contacting Microsoft. This is Sophia who will help you with this issue.
From your description, I learnt that the issue you are experiencing is that you failed to repair degraded Virtual disks in Storage Spaces 2012 R2. Please let me
know if I misunderstand anything.
First of all, I would like to suggest you install the following hotfix to upgrade storage related files to the newest edition. After that, please test how the issue
goes.
==========================================
Package: This is to upgrade NTFS.sys.
KB Article Number(s): 2996802
Language: All (Global)
Platform: x64
Location: (http://hotfixv4.microsoft.com/Windows%208.1/Windows%20Server%202012%20R2/sp1/Fix524134/9600/free/480025_intl_x64_zip.exe)
Package: This is to upgrade Msiscsi.sys
KB Article Number(s): 3000123
Language: All (Global)
Platform: x64
Location: (http://hotfixv4.microsoft.com/Windows%208.1/Windows%20Server%202012%20R2/sp1/Fix524132/9600/free/479758_intl_x64_zip.exe)
Package: This is to upgrade MSDSM.sys & MPIO.SYS
KB Article Number(s): 2914743
Language: All (Global)
Platform: x64
Location: (http://hotfixv4.microsoft.com/Windows%208.1/Windows%20Server%202012%20R2/sp1/Fix525821/9600/free/479581_intl_x64_zip.exe)
Best regards,
Sophia Sun
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Replace 2 old SANS with Storage Spaces?

We have two old HP SANs we want to replace before they fail.
All our hosts are Hyper-V and the VMs all Microsoft OSes.
We can replace them with equivalent SANs but I would like to ask you was to the comparison with a Storage Space solution: eliminating the rather idiosyncratic SAN management software etc..
CarolChi

Hi Carol,
Is there any specific question regarding this topic?
General speaking, Storage Space is somewhere similar to software RAID - you can create simple volume (RAID0), mirror volume (RAID1) or parity volume (RAID5). And there are some other options such as dual parity, 3-way mirror etc. You can manually confige
these options with PowerShell cmdlet so in order to manage Storage Space, you may need to realize related PowerShell cmdlet first.
And here is an article which introduced Storage Space:
Windows Server 2012 Storage Spaces: Is it for you? Could be…
http://blogs.technet.com/b/askpfeplat/archive/2012/10/10/windows-server-2012-storage-spaces-is-it-for-you-could-be.aspx
If you have any feedback on our support, please send to [email protected]

Repair-VirtualDisk on Storage Spaces simple volume with retired disk?

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