Data Recovery Zone Hard Drive Repair Services » RAID Data Recovery

Powervault Data Recovery

Victoria Stankard — Wed, 28 May 2008 18:42:37 +0000

Powervault RAID Data Recovery

Dell raids come either built into the motherboard (MLB, main logic board) or are plug in to the PCI slot 32bit or 64bit.
Raid Failures on: Raid 0, Raid 1, Raid 5, Raid 10, Raid 50
Broken Raid- More than one drive is out on the raid during operation and it fails the raid.
Most times this happens while the raid is in a crippled state and trying to replace the bad drive a good drive is pulled or replaced while the raid is powered off. Both will result in a Failed Raid.
The majority of our work is done directly on Poweredge systems. Our success rate on Snap and PowerVault is nearly 100% as long as the proper steps are taken. Dell support is often too quick to initialize arrays. Please call 1-727-251-2058 for a no obligation quote and action plan.
THIS IS A RECOVERABLE STATE

DRZ Clones all drives and work the recovery on our systems guaranteeing no further data loass!
Bad Risk Table or parity loss- The risk tables have been over written with a new configuration or the Raid has lost the parity. This usually happens trying to correct the broken raid problem, upgrades, big mistakes or employee sabotage and gets worse trying to correct the problem.
THIS IS A RECOVERABLE STATE

Call 727-251-2058 for 24 hour a day 7 days a week help.

or Fill out an Online Quote Form

ROM UPGRADES, know as flashing the rom bios on a lot of the PERC raid controllers and others will cause the drives to not be recognized.
This happens due to the changes in the firmware to recognize the partition and will cause partition damage. Replacing the old firmware will not help.
THIS IS A RECOVERABLE STATE

Failed Hard Drives: One or more drives fail on raid at same time.
This is just plain old hard drive failure that must occur at sometime. Sometimes its more than one drive and there comes the problem. The raid can only have one failure unless it’s a mirrored raid.
THIS IS RECOVERABLE ONLY IF ONE OF THE DRIVES IS RECOVERABLE OUT OF THE TWO. ONLY ONE OF THE DRIVES CAN BE FAILED FOR RECOVERY. THE RAID IS BROKEN AT THIS POINT. By using specialized techniques Data Recovery Zone can perform a data extraction.
The different configurations require different techniques.
Dell servers
Performance Tower Servers
Single Processor Tower Server
Dual Xeon Processor Mainstream 5U Tower
Dual Xeon Processor Expandable 6U Tower
Quad Xeon Processor MP 7U Tower
PowerEdgeTM 700
PowerEdgeTM 2600
PowerEdgeTM 4600
PowerEdgeTM 6600
TECH SPECS
Processor
Single Intel Pentium 4 processor up to 3.4GHz or Single Intel Celeron processor at 2.4GHz

TECH SPECS
Processor
Up to 2 Intel Xeon processors at up to 3.2GHz

TECH SPECS
Processor
Up to 2 Intel Xeon processors at up to 3.0GHz

TECH SPECS
Processor
Up to 4 Intel Xeon Processors MP at up to 3.0GHz

Memory
Up to 4GB DDR400 SDRAM, 4 x 1.0 GB

Memory
Up to 12GB ECC SDRAM memory

Memory
Up to 24GB ECC DDR SDRAM

Memory
Up to 32GB DDR266 ECC SDRAM

Up to 584GB maximum internal storage (SCSI)

Storage
Up to 584GB maximum internal storage

Storage
Up to 1460GB maximum internal storage

Storage
Over a terabyte (1,752GB) of internal storage

Chassis
Tower Chassis.Tower dimensions: 17.28″ (43.9cm) H x 7.8″ (19.8cm) W x 19.68″ (50cm) D with bezel

Chassis
Tower or 5U Rack Chassis.Tower dimensions: 17.5″ (44.45cm) H x 9″ (22.86cm) W x 24.5″ (62.23cm) D

Chassis
Tower or 6U Rack Chassis.Tower dimensions: 17.5″ (44.45cm) H x 12.26″ (31.14cm) W x 27.59″ (70.08cm) D

Chassis
Tower or 7U Rack Chassis.Tower dimensions: 19.4″ (49.27cm) H x 17.38″ (44.13cm) W x 28.3″ (71.88cm) D
Value Tower Servers
Single Pentium 4 Processor Entry-level Tower
Single Pentium 4 Processor Tower
Dual Xeon Processor Tower
PowerEdgeTM 400SC
PowerEdgeTM 600SC
PowerEdgeTM 1600SC
TECH SPECS
Processor
Up to Single Intel Pentium 4 processor at up to 3.2GHz

TECH SPECS
Processor
Up to Single Intel Pentium 4 processor at up to 3.06GHz

TECH SPECS
processor
Up to 2 Intel Xeon processors at up to 3.2GHz

Memory
Up to 4GB ECC DDR-333/400 registered SDRAM

Memory
Up to 4GB ECC SDRAM memory

Memory
Up to 4GB ECC DDR SDRAM memory

Storage
Up to 240GB maximum internal storage

Storage
Up to 584GB maximum internal storage

Storage
Up to 876GB maximum internal storage
These all use internal storage and depending on the system use built in or PCI raid controllers of different types. Recovery procedures are different for each type.

Call 727-251-2058 for 24 hour a day 7 days a week help.

or Fill out an Online Quote Form

Power Vaults
The Power Vaults come in different types.
SCSI, NAS, Fibre Channel.
These systems are external from the server.
Recovery is very different for each due to the extreme differences in configurations.

PowerVault SCSI Storage 22xS
TECH SPECS
Drive Bays
Holds up to 14 1″ LVD Ultra 160 and Ultra3 SCSI drives

Storage Capacity
Adds up to 2044GB1 storage capacity Splittable backplane allows duplexing of drives. 36GB, 73GB, and 144GB (10,000 rpm) or 18GB, 36GB (15,000 rpm)

Bandwidth
Up to 320MB/s throughput

Model
PowerVault 220S Rack-mount enclosure: 3U form factor for rack dense environments PowerVault 221S Tower

The 22x series operate with the new Perc 4 board to give it the 320MB/s through put.
Power Vault NAS Storage
PowerVault 725N
PowerVault 745N
PowerVault 770N
PowerVault 775N
TECH SPECS
Storage
160GB, 320GB, 480GB, and 1TB models available

TECH SPECS
Storage
Up to 4TB

TECH SPECS
Storage
Scalable from 876GB – 17.2TB with SCSI and over 40TB with fibre channel

TECH SPECS
Storage
Scalable from 438GB – 16.7TB with SCSI and over 40TB with fibre channel

Raid
SW 0, 1, 5 HW 0, 5

Raid
HW 0, 1, 5, 1+0, 5+0

Connectivity
Dual embedded Gigabit Ethernet NICs

Connectivity
Embedded Gigabit Ethernet NIC

Connectivity
Dual embedded Gigabit Ethernet NICs

Chassis
1U rackmount or deskside

Chassis
5U rackmount or tower

Chassis
2U rackmount
Dell | EMC Fibre Channel RAID Arrays
Dell/EMC Fibre Channel CX300
Dell/EMC Fibre Channel CX500
Dell/EMC Fibre Channel CX700
Entry-level RAID Array
Entry-level RAID Array
Enterprise RAID Array
TECH SPECS
Drive Capacity
Up to 60 drives

TECH SPECS
Drive Capacity
Up to 120 drives

TECH SPECS
Drive Capacity
Up to 240 drives

Storage
Up to 13.4TB with ATA drives

Storage
Up to 28.4TB with ATA drives

Storage
Up to 58.4TB with ATA drives

Bandwidth
Over 680MB/s: 50,000 cached IOs per second

Bandwidth
120,000 I/Os per second; Over 760 MB/s sustained throughput

Bandwidth
Over 1300 MB/s sustained throughput: 200,000 cached IOs per second

Cache
2GB cache

Cache
4GB cache

Cache
8GB cache

Supported OS
Windows NT 4.0 Windows, 2000Windows, Server 2003 (.Net), Sun-SolarisNetware, Linux

Supported OS
Windows NT 4.0, Windows 2000,Windows Server 2003 (.Net); Sun-SolarisNetware;Linux

Supported OS
Windows NT, Windows 2000, Sun Solaris , HP-UX, IBM AIX, NetWare, Linux, SGI® Irix.

Call 727-251-2058 for 24 hour a day 7 days a week help

PowerEdge Data Recovery

Victoria Stankard — Wed, 28 May 2008 18:42:27 +0000

Dell PowerEdge Powervault RAID Data Recovery

Dell raids come either built into the motherboard (MLB, main logic board) or are plug in to the PCI slot 32bit or 64bit.

Raid Failures: Raid 0, Raid 1, Raid 5, Raid 10, Raid 50

Broken Raid - More than one drive is out on the raid during operation and it fails the raid.
Most times this happens while the raid is in a crippled state and trying to replace the bad drive a good drive is pulled or replaced while the raid is powered off. Both will result in a Failed Raid.
The majority of our work is done directly on Powerdege systems. Our success rate on Snap and PowerVault is nearly 100% as long as the proper steps are taken. Dell support is often too quick to initialize arrays. Please call 1-727-251-2058 for a no obligation quote and action plan.
THIS IS A RECOVERABLE STATE

Data Recovery Zone Clones all drives and work the recovery on our systems guaranteeing no further data loss!

Bad Risk Table or Parity Loss - The risk tables have been over written with a new configuration or the Raid has lost the parity. This usually happens trying to correct the broken raid problem, upgrades, big mistakes or employee sabotage and gets worse trying to correct the problem.
THIS IS A RECOVERABLE STATE

Call 727-251-2058 for 24 hour a day 7 days a week help.

ROM UPGRADES- flashing the rom bios on a lot of the PERC raid controllers and others will cause the drives to not be recognized.
This happens due to the changes in the firmware to recognize the partition and will cause partition damage. Replacing the old firmware will not help.
THIS IS A RECOVERABLE STATE

Failed Hard Drives – One or more drives fail on raid at same time.
This is just plain old hard drive failure that must occur at sometime. Sometimes its more than one drive and there comes the problem. The raid can only have one failure unless it’s a mirrored raid.
THIS IS RECOVERABLE ONLY IF ONE OF THE DRIVES IS RECOVERABLE OUT OF THE TWO. ONLY ONE OF THE DRIVES CAN BE FAILED FOR RECOVERY. THE RAID IS BROKEN AT THIS POINT. By using specialized techniques.

Data Recovery Zone can perform a data extraction.
The different configurations require different techniques.

Dell Servers

Performance Tower Servers
Single Processor Tower Server
Dual Xeon Processor Mainstream 5U Tower
Dual Xeon Processor Expandable 6U Tower
Quad Xeon Processor MP 7U Tower
PowerEdgeTM 700
PowerEdgeTM 2600
PowerEdgeTM 4600
PowerEdgeTM 6600
TECH SPECS
Processor
Single Intel Pentium 4 processor up to 3.4GHz or Single Intel Celeron processor at 2.4GHz

TECH SPECS
Processor
Up to 2 Intel Xeon processors at up to 3.2GHz

TECH SPECS
Processor
Up to 2 Intel Xeon processors at up to 3.0GHz

TECH SPECS
Processor
Up to 4 Intel Xeon Processors MP at up to 3.0GHz

Memory
Up to 4GB DDR400 SDRAM, 4 x 1.0 GB

Memory
Up to 12GB ECC SDRAM memory

Memory
Up to 24GB ECC DDR SDRAM

Memory
Up to 32GB DDR266 ECC SDRAM

Up to 584GB maximum internal storage (SCSI)

Storage
Up to 584GB maximum internal storage

Storage
Up to 1460GB maximum internal storage

Storage
Over a terabyte (1,752GB) of internal storage

Chassis
Tower Chassis.Tower dimensions: 17.28″ (43.9cm) H x 7.8″ (19.8cm) W x 19.68″ (50cm) D with bezel

Chassis
Tower or 5U Rack Chassis.Tower dimensions: 17.5″ (44.45cm) H x 9″ (22.86cm) W x 24.5″ (62.23cm) D

Chassis
Tower or 6U Rack Chassis.Tower dimensions: 17.5″ (44.45cm) H x 12.26″ (31.14cm) W x 27.59″ (70.08cm) D

TECH SPECS
Processor
Up to Single Intel Pentium 4 processor at up to 3.06GHz

TECH SPECS
processor
Up to 2 Intel Xeon processors at up to 3.2GHz

Memory
Up to 4GB ECC DDR-333/400 registered SDRAM

Memory
Up to 4GB ECC SDRAM memory

Memory
Up to 4GB ECC DDR SDRAM memory

Storage
Up to 240GB maximum internal storage

Storage
Up to 584GB maximum internal storage

Call 727-251-2058 (24/7)

PowerVault SCSI Storage 22xS
TECH SPECS
Drive Bays
Holds up to 14 1″ LVD Ultra 160 and Ultra3 SCSI drives

Storage Capacity
Adds up to 2044GB1 storage capacity Splittable backplane allows duplexing of drives. 36GB, 73GB, and 144GB (10,000 rpm) or 18GB, 36GB (15,000 rpm)

Bandwidth
Up to 320MB/s throughput

Model
PowerVault 220S Rack-mount enclosure: 3U form factor for rack dense environments PowerVault 221S Tower

TECH SPECS
Storage
Up to 4TB

TECH SPECS
Storage
Scalable from 876GB – 17.2TB with SCSI and over 40TB with fibre channel

TECH SPECS
Storage
Scalable from 438GB – 16.7TB with SCSI and over 40TB with fibre channel

Raid
SW 0, 1, 5 HW 0, 5

Raid
HW 0, 1, 5, 1+0, 5+0

Connectivity
Dual embedded Gigabit Ethernet NICs

Connectivity
Embedded Gigabit Ethernet NIC

Connectivity
Dual embedded Gigabit Ethernet NICs

Chassis
1U rackmount or deskside

Chassis
5U rackmount or tower

TECH SPECS
Drive Capacity
Up to 120 drives

TECH SPECS
Drive Capacity
Up to 240 drives

Storage
Up to 13.4TB with ATA drives

Storage
Up to 28.4TB with ATA drives

Storage
Up to 58.4TB with ATA drives

Bandwidth
Over 680MB/s: 50,000 cached IOs per second

Bandwidth
120,000 I/Os per second; Over 760 MB/s sustained throughput

Bandwidth
Over 1300 MB/s sustained throughput: 200,000 cached IOs per second

Cache
2GB cache

Cache
4GB cache

Cache
8GB cache

Supported OS
Windows NT 4.0 Windows, 2000Windows, Server 2003 (.Net), Sun-SolarisNetware, Linux

Supported OS
Windows NT 4.0, Windows 2000,Windows Server 2003 (.Net); Sun-SolarisNetware;Linux

Supported OS
Windows NT, Windows 2000, Sun Solaris , HP-UX, IBM AIX, NetWare, Linux, SGI® Irix.

Call 727-251-2058 (24/7)

RAID Data Recovery

Michael Stankard — Wed, 28 May 2008 18:39:05 +0000

Data Recovery Zone has more experience dealing with RAID/SAN/NAS than any other data recovery company. RAID data recovery is serious business. Don’t Trust your RAID system to just anyone, call the experts.

To speak with a qualified RAID technician, please call 727-251-2058.

Data Recovery Zone (DRZ) sector clones all drives prior to doing any work on RAID systems. This is vital to prevent further data loss. DRZ has the capabilities to recover RAID systems virtually. Don’t be fooled by companies that only want the drives. With the constant upgrades and revisions to the firmware that is a reckless approach to RAID data recovery. Many times the extra few dollars it takes to ship the unit can save hours even days in the recovery process. DRZ is committed to not only recover your data, but ascertain WHAT happened to prevent further data loss in the future.

Speak with one of our engineers before sending your drives anywhere. 727-251-2058 (24/7)

Data Recovery Zone is unmatched when it comes to RAID Data Recovery and Repair. Our technicians are capable of recovering and repairing inaccessible data from nearly all forms of RAID system servers including:

file servers
application servers
web servers
network attached storage
RAID systems of any size

All RAID recovery work is done on-site in our own class 100 clean room. Regardless of the problem, manufacturer, or operating system, we can handle the situation:

Unbootable Systems
Corrupted RAID•Missing Partitions
Controller Failure
Computer virus and worm damage
Natural Disaster
Human Error
Missing Partitions

Manufacturers

•Adaptec
•AMI
•Bus Logic
•Compaq
•HP
•Mylex
•PERC
•Pinnacle
•Promise
•Raidtec
•Software RAIDS
•Storage Dimensions
•Sun
•3ware

Operating Systems

•Windows NT
•Windows XP
•Windows 2000
•Windows 2003
•Microsoft Exchange
•Sun Solaris
•IBM AIX HP UX
•LINUX
•UNIX

What is RAID?

RAID is an acronym for Redundant Array of Inexpensive (or Independent) Disks. A RAID array is a collection of drives which collectively act as a single storage system, which can tolerate the failure of a drive without losing data, and which can operate independently of each other.

Different RAID Levels

A research group at UC-Berkeley coined the term “RAID”, defining six RAID levels. Each level is a different way to spread data across multiple drives–a compromise between cost and speed. Understanding these levels is important, because each level is optimized for a different use.

RAID Level 0 is not redundant, hence does not truly fit the “RAID” acronym. In Level 0, data is split across drives, resulting in higher data throughput. Since no redundant information is stored, performance is very good, but the failure of any disk in the array results in all data loss. This level is commonly referred to as striping.
RAID Level 1 is commonly referred to as mirroring with 2 hard drives. It provides redundancy by duplicating all data from one drive on another drive. The performance of a Level 1 array is slightly better than a single drive, but if either drive fails, no data is lost. This is a good entry-level redundant system, since only two drives are required. However, since one drive is used to store a duplicate of the data, the cost per megabyte is high.
RAID Level 2, which uses Hamming error correction codes, is intended for use with drives which do not have built-in error detection. All SCSI drives support built-in error detection, so this level is of little use when using SCSI drives.
RAID Level 3 stripes data at a byte level across several drives, with parity stored on one drive. It is otherwise similar to level 4. Byte-level striping requires hardware support for efficient use.
RAID Level 4 stripes data at a block level across several drives, with parity stored on one drive. The parity information allows recovery from the failure of any single drive. The performance of a level 4 array is very good for reads (the same as level 0). Writes, however, require that parity data be updated each time. This slows small random writes, in particular, though large writes or sequential writes are fairly fast. Because only one drive in the array stores redundant data, the cost per megabyte of a level 4 array can be fairly low.
RAID Level 5 is commonly referred to as striping with distributed parity. RAID Level 5 is similar to level 4, but distributes parity among the drives. No single disk is devoted to parity. This can speed small writes in multiprocessing systems. Because parity data must be distributed on each drive during reads, the performance for reads tends to be considerably lower than a level 4 array. The cost per megabyte is the same as for level 4.
RAID 0/1 or10 is a dual level array that utilizes multiple RAID1 (mirrored) sets into a single array. Data is striped across all mirrored sets. As a comparison to RAID 5 where lower cost and fault tolerance is important, RAID 0/1 utilizes several drives, in order to provide better performance. Each drive in the array is duplicated (mirrored). This eliminates the overhead and delay of parity. This level array offers high data transfer advantages of striped arrays and increased data accessibility (reads). System performance during a drive rebuild is also better than that of parity based arrays, since data does not need to be regenerated from parity information, but copied from the other mirrored drive.
RAID 0/5 or 50 is a dual level array that utilizes multiple RAID5 sets into a single array. In RAID 0/5 array, a single hard drive failure can occur in each of the RAID5 without any loss of data on the entire array. Keep in mind, as the number of hard drives increase in an array, so too, does the increased possibility of a single hard drive failure. Although there is an increased write performance in RAID 0/5, once a hard drive fails and reconstruction takes place, there is a noticeable decrease in performance, data/program access will be slower, and transfer speeds on the array will be effected.

Which RAID to Use

The right choice depends on the application. The RAID Levels below provide a brief summary and general uses. Keep in mind, Adaptec RAID controllers do not support all RAID Levels. Please check Technical Specifications for your RAID product for RAID Levels that are supported.

RAID Level Uses

Level 0 (striping)
Any application which requires very high speed storage, but does not need redundancy. Photoshop temporary files are a good example.
Level 1 (mirroring)
Applications which require redundancy with fast random writes; entry-level systems where only two drives are available. Small file servers are an example.
Level 0/1 or 10 (mirroring and striping)
Dual level raid, combines multiple mirrored drives (RAID 1) with data striping (RAID 0) into a single array. Provides highest performance with data protection.
Level 5 (distributed parity)
Similar to level 4, but may provide higher performance if most I/O is random and in small chunks. Database servers are an example.
Level 0/5 or 50
Dual level raid, combines multiple RAID 5 sets with data striping (RAID 0). Increased reliability and performance over standard RAID5 that can stand a multiple drive failure; one hard drive per RAID5 set.

Call 727-251-2058 ( our toll-free number is at the top of every page) to speak with a representative and receive your quote over the phone. We answer our phones 24 hours a day 7 days a week.