Applies to:

Windows Server 2008 R2 RTM

Note:  You should check http://support.microsoft.com for the latest version of the different files.

List of storage related hotfixes post RTM for Windows Server 2008 R2 as of April, 2011:

2520212 Events are missing if the "Global Object Access Auditing" Group Policy setting for the built-in Administrators group is applied in Windows Server 2008 R2 or in Windows 7
http://support.microsoft.com/?id=2520212
Update(s):  ntoskrnl.exe

Supersedes:
2516405
2511305 Network throughput is not scaled up correctly if high-bandwith
2510206 Performance issues when more than 64 logical processors are used
2502664
2498472
2498472
2494666
2473205
2417038
2398906
2393802
2295805 The Hyper-V related services cannot start on a Windows Server 2008
2155311 Poor performance occurs on a computer that has NUMA-based
983544 The "Modified time" file attribute of a registry hive file is updated when an application loads and then unloads the registry hive file without making any changes on a computer that is running Windows Server 2008 R2 or Windows 7
983461 Startup takes about 13 seconds longer than usual on a UEFI-based
983460 Startup takes a long time on a Windows 7 or Windows Server 2008 R2
983491
983289 The ZwAllocateVirtualMemory function fails together with a
982856
982383 You encounter a decrease in IO performance under a heavy disk IO
981852
980992
980598
979903
979683
979444
979149
977375
976700 An application stops responding, experiences low performance, or
975351
974598
958685

2468345 Computer intermittently performs poorly or stops responding when the Storport driver is used in Windows Server 2008 R2
http://support.microsoft.com/?id=2468345
Update(s): Storport.sys
And you also need to set the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\<MINIPORT>\Parameters
Supports64BitAddressing (DWORD) 1 (hex)
Note:  Where <MINIPORT> means the name of the Storport miniport driver.

Supersedes:
2511500
2005620
983554
982018
981208 Poor performance when you transfer many small files on a computer that is running Windows 7 or Windows Server 2008 R2

Note:  You should check with your SAN vendor matrix to make sure that you are on a supported state.  If you are running into the symptom described in the storport kb article, you could “test” it while working with your SAN vendor.

Note 2:  The storport hotfix and registry key also applies to iSCSI based SAN’s and NAS devices.

983466 "A fatal error has occurred." error message when you use Windows Update on a Windows 7 or Windows Server 2008 R2-based computer that has a third-party filter driver installed
http://support.microsoft.com/?id=983466
Update(s): Ntfs.sys

Supersedes:
982018 An update that improves the compatibility of Windows 7 and Windows Server 2008 R2 with Advanced Format Disks is available
981208 Poor performance when you transfer many small files on a computer that is running Windows 7 or Windows Server 2008 R2
981166 Some data is corrupted when cached and noncached I/O operations occur by using the same NTFS file handle
980382 The computer stops responding when you rename a folder in Windows Server 2008, in Windows Vista, in Windows 7 and in Windows Server 2008 R2
979350
978516 You experience significant delays when you read the same set of files several times on a read-only volume in Windows 7 or in Windows Server 2008 R2
976538 File corruption may occur if you run a program that uses a file system filter driver in Windows 7, Windows Server 2008 R2, Windows Vista, or Windows Server 2008

2490742 A "0x000000B8" Stop error occurs when you try to shut down or hibernate a computer that is running Windows 7 or Windows Server 2008 R2
http://support.microsoft.com/?id=2490742
Update(s): volmgr.sys

Supersedes:
2470949 The RegQueryValueEx function returns a very large incorrect value for the "Avg. Disk sec/Transfer" performance counter in Windows Server 2008 R2 or in Windows 7
2344941
981156 RemoteApp applications are displayed as black windows when you restart the applications in a Remote desktop connection in Windows Server 2008 R2

2521220 "0x0000001E" Stop error when you perform disk I/O-intensive operations on dynamic disks in Windows Server 2008 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2521220
Update(s): volmgrx.sys


2505454 The startup process is delayed on a computer that has a large hard disk installed and is running Windows 7 or Windows Server 2008 R2
http://support.microsoft.com/?id=2505454
Update(s): volsnap.sys

Supersedes:
2460912
2299380
2280117
2223201
2155024
2028566
983633 You cannot bring a volume online when the Snapshot Protection mode is enabled in Windows Server 2008 R2 or in Windows 7
980082
976329
975688

Note:  Most backup software use VSS (Volume Shadow Copy)

979344 An attached eSATA drive is considered as a fixed data drive on a computer that is running Windows 7 or Windows Server 2008 R2
http://support.microsoft.com/?id=979344
Update(s): fvevol.sys
Supersedes:
978898
975496

981836 Network connectivity for a Windows Server 2003-based Hyper-V virtual machine is lost temporarily in Windows Server 2008 R2
http://support.microsoft.com/?id=981836
Update(s): storvsp.sys 

982674
981357 The handle count of the system process keeps increasing in Windows Server 2008, in Windows Vista, in Windows 7 or in Windows Server 2008 R2
http://support.microsoft.com/?id=981357
Update(s): Msiscsi.sys
Supersedes:
979711
979619
976443

Note: Only needed if iSCSI is used to connect to a SAN/NAS device.

2511962 "0x000000D1" Stop error occurs in the Mpio.sys driver in Windows ...
http://support.microsoft.com/?id=2511962
Update(s): Mpio.sys

Supersedes:
2460971
2406705
2277904
979743
978500
977506

Note: Only needed if iSCSI is used to connect to a SAN/NAS device.

2028815 "0x00000050" Stop error message occurs when you use multiple volume managers in Windows Server 2008 or in Windows Server 2008 R2
http://support.microsoft.com/?id=2028815
Update(s): Partmgr.mof
Partmgr.sys

2460971 MPIO failover fails on a computer that is running Windows Server 2008 R2
http://support.microsoft.com/?id=2460971
Update(s): msdsm.sys

Supersedes:
981379
908143
978500
978157

Note:  Only needed if iSCSI is used to connect to a SAN/NAS device.

2344941 "0x0000007B" Stop error when you replace an iSCSI or PCI Express network adapter or a motherboard with an identical device on a Windows Server 2008 R2-based or Windows 7-based computer

http://support.microsoft.com/?id=2344941

Agp440.sys 6.1.7600.16385

Isapnp.sys 6.1.7600.16385

Msisadrv.sys 6.1.7600.16385

Mssmbios.sys 6.1.7600.16385

Nv_agp.sys 6.1.7600.16385

Pci.sys 6.1.7600.20776

Streamci.dll 6.1.7600.16385

Swenum.sys 6.1.7600.16385

Termdd.sys 6.1.7600.20776

Uliagpkx.sys 6.1.7600.16385

Vdrvroot.sys 6.1.7600.16385

Volmgr.sys 6.1.7600.20776

Reference:

2526142 Ghost NIC seen on Windows 7/Windows 2008 R2 machines built from VMWare Templates when the Template uses a Synthetic NIC (VMXNET3)

http://support.microsoft.com/?id=2526142

Note: Only needed if iSCSI is used to connect to a SAN/NAS device.

 

975617 An update is available for the UDF file system driver (Udfs.sys) for Windows 7 and Windows Server 2008 R2
http://support.microsoft.com/?id=975617
Update(s): disk.sys

978562 The "Validate Multiple Arbitration" test on a Windows Server 2008 R2-based failover cluster may incorrectly fail
http://support.microsoft.com/?id=978562
Update(s): ClusDisk.sys

Note:  Only needed if the Failover Cluster feature is installed.

2494016 Stop error 0x0000007a occurs on a virtual machine that is running on a Windows Server 2008 R2-based failover cluster with a cluster shared volume, and the state of the CSV is switched to redirected access
http://support.microsoft.com/?id=2494016
Update(s): CSVFilter.sys

2521220 "0x0000001E" Stop error when you perform disk I/O-intensive operations on dynamic disks in Windows Server 2008 or in Windows Server 2008 R2
http://support.microsoft.com/?id=2521220
Update(s): msisadrv.sys

Supersedes:
2344941
981156 RemoteApp applications are displayed as black windows when you restart the applications in a Remote desktop connection in Windows Server 2008 R2
979344
976240

2521220 "0x0000001E" Stop error when you perform disk I/O-intensive operations on dynamic disks in Windows Server 2008 or in Windows Server 2008 R2
http://support.microsoft.com/?id=2521220
Update(s): pci.sys

Supersedes:
2490742
2470949
2344941
2194018
981156 RemoteApp applications are displayed as black windows when you restart the applications in a Remote desktop connection in Windows Server 2008 R2
979344
976240

2344941 "0x0000007B" Stop error when you replace an iSCSI or PCI Express network adapter or a motherboard with an identical device on a Windows Server 2008 R2-based or Windows 7-based computer
http://support.microsoft.com/?id=2344941
Update(s): vdrvroot.sys
Supersedes:
981156 RemoteApp applications are displayed as black windows when you restart the applications in a Remote desktop connection in Windows Server 2008 R2
979344

2288487 Data corruption occurs when you write data to a partition on a disk through an IDE port or a SATA port that uses IDE emulation on a Windows Server 2008 R2-based or a Windows 7-based computer
http://support.microsoft.com/?id=2288487
Supersedes:
982667 Windows intermittently does not detect the optical disk drive when you start a computer that is running Windows 7 or Windows Server 2008 R2
Update(s): pciide.sys

2288487 Data corruption occurs when you write data to a partition on a disk through an IDE port or a SATA port that uses IDE emulation on a Windows Server 2008 R2-based or a Windows 7-based computer
http://support.microsoft.com/?id=2288487
Supersedes:
982667 Windows intermittently does not detect the optical disk drive when you start a computer that is running Windows 7 or Windows Server 2008 R2
Update(s): PCIIDEX.SYS

2288487 Data corruption occurs when you write data to a partition on a disk through an IDE port or a SATA port that uses IDE emulation on a Windows Server 2008 R2-based or a Windows 7-based computer
http://support.microsoft.com/?id=2288487
Supersedes:
982667 Windows intermittently does not detect the optical disk drive when you start a computer that is running Windows 7 or Windows Server 2008 R2
Update(s): atapi.sys 

2288487 Data corruption occurs when you write data to a partition on a disk through an IDE port or a SATA port that uses IDE emulation on a Windows Server 2008 R2-based or a Windows 7-based computer
http://support.microsoft.com/?id=2288487
Supersedes:
982667 Windows intermittently does not detect the optical disk drive when you start a computer that is running Windows 7 or Windows Server 2008 R2
979444
Update(s): ataport.SYS

2303458 A fix is available for three issues in the x2APIC mode in x64-based versions of Windows Server 2008 R2
http://support.microsoft.com/?id=2303458
Update(s): hal.dll

Supersedes:
980598 Windows Server 2008 R2 cannot be installed or started on a computer that has 1 TB or more of RAM
980598
979683
978330

980358 Stop error when you startup Windows Preinstallation Environment on a computer that has the Pentium 233 MHz MMX process installed: "STOP 0x00000078"
http://support.microsoft.com/?id=980358
Update(s): mcupdate_GenuineIntel.dll

981833 "STOP: 0x0000006B" Stop error message during startup on a computer that is running Windows 7 or Windows Server 2008 R2
http://support.microsoft.com/?id=981833
Update(s): CI.dll

2508054
http://support.microsoft.com/?id=2508054
Update(s): ACPI.sys

Supersedes:
983543 "STOP 0x000000D1" error message when you try to access a device that is not a PCI device in Windows 7 or in Windows Server 2008 R2
982856
958685

None
Update(s): CLASSPNP.SYS

None
http://support.microsoft.com/?id=
Update(s): mountmgr.sys

None
http://support.microsoft.com/?id=
Update(s): fltmgr.sys

None
http://support.microsoft.com/?id=
Update(s): vmstorfl.sys