HP D2D Support Question
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Question posted by yo54 on June 13th, 2014
What Is A Concurrent Source Job Witin D2d
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Related HP D2D Manual Pages
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 2
... Management Interface 44 How to use the D2D storage and deduplication ratio reporting metrics 46
D2D Replication ...48 D2D replication overview...48 Best practices overview...48 Replication usage models...49 What to replicate ...52 Appliance, library and share replication fan in/out 53 Concurrent replication jobs ...54 Limiting replication concurrency ...54 WAN link sizing ...54 Seeding and...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 8
... a virtual cartridge is returned to its storage slot or a NAS file has completed writing...will be varied in is deleted from the D2D system (e.g.
Apply replication bandwidth limits or ...source appliances that may replicate to the device as further backups, restores, tape offload jobs or replication.
Model
Fan in
Maximum number concurrent source jobs
Maximum number concurrent target jobs...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 9
...even if backup jobs are manually erased or re-formatted. Running backup, restore, tape offload and replication operations with multiple backup streams sent to the D2D Backup System simultaneously but separately.
it aggregates multiple source server backups into a single stream. Configuring backup rotation schemes correctly is used with physical tape devices in housekeeping never...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 34
...backup (whilst staying within the limit of concurrent backup streams per NAS share). It is advised that this to either perform multiple concurrent backup jobs or use of the network interface by...pre-allocated files are for virtual tape devices because they are not completely filled with zeros at creation time, i.e. Concurrent operations For best D2D performance it is NOT used because it...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 48
... a ―round robin‖ process through the libraries and shares on a D2D; For example, if a file is on the source device. An item (VTL Cartridge or NAS file) will be marked ready for replication... data that has resulted in the loss of both VTL and NAS devices. it is available. Limit the number of concurrent replication jobs if only a small WAN bandwidth is closed (or the VTL cartridge...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 54
Concurrent replication jobs
Each D2D model has a different maximum number of 2 Mb/s is available per replication job. The table below shows these values. Maximum Source jobs Maximum target jobs
D2D2502 G1 2 3
D2D2503 G1 1 2
D2D2504 G1 2 3
D2D400X G1 2 6
D2D4112 G1 2 8
Maximum Source jobs Maximum target jobs
D2D2502 G2
4 8
D2D2504 G2
4 8
D2D4106 G2
8 24
D2D4112 G2
8 24
D2D4312 and ...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 55
...deduplication ratio) Number of D2D systems replicating Number of concurrent replication jobs from several source appliances, performance will be reduced due to ensure that the D2D has no failed disks and... codes exist already on it - this threshold replication jobs will impact performance.
When seeding over fast networks (co-located D2D devices) it should be allowed. Seeding and why it ...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 56
...about 2TB currently. This type of larger backup volumes/jobs to D2D over time
As an example, the first 500GB full ... Active -- Many to the configuration. Using the floating D2D approach means the device is perfectly acceptable for customers to ask their link providers...- Seeding time over LAN)
Floating D2D
Backup application Tape offload/ copy from source and copy onto target
Active -- Backup...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 81
...
D2D Gen2 Products, Software 2.1.00
D2D2502i
D2D2504i
D2D4106i/fc D2D4112fc D2D4312fc
Devices
Usable Disk Capacity (TB)
1.5
3
9
18
36
Max Number Devices (VTL/NAS)
4
8
16
24
50
Replication
Max VTL Library Rep Fan Out
Max VTL Library Rep Fan In
Max Appliance Rep Fan Out
Max Appliance Rep Fan In Max Appliance Concurrent Rep Jobs Source Max...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 82
... Out
2
2
2
4
4
Max Appliance Rep Fan In
4
6
8
16
16
Max Appliance Concurrent Rep Jobs Source
2
1
2
2
2
Max Appliance Concurrent Rep Jobs Target
3
2
3
6
6
Physical Tape Copy Support
Supports direct attach of physical tape device
Yes
Yes
Yes
Yes
Yes
Max Concurrent Tape Attach Jobs Appliance
4
4
4
4
4
VTL
Max VTL Drives Per Library
4
1
4
4
4
Max Slots Per...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 95
... site of the backup concurrency up to 8 replication jobs at a time, and the sources can only replicate 4 jobs at a time*, which means not all replication jobs can run at once. *This is replicated worst case from the sources to the maximum the source device can support (in size they can support a maximum of every D2D device. The Sizer also outputs...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 117
...jobs from either the source or target D2D Web Management Interface
3. Allow replication to complete so that both stores are synchronized, this will ease the migration of the backup application devices.
117 Remove the replication mapping from running to the source device so that both source... target for temporary storage of all data needs to be used as the original D2D.
2. If using...
D2D Best Practices for VTL, NAS and Replication implementations (EH985-90935, March 2011) - Page 130
...
activity graph, 44 deduplication, 7 libraries per appliance, 27 maximum concurrent backup jobs, 26 maximum NAS operations, 36 metrics on GUI, 44 multi-...concurrency limiting, 55 replication throughput, 69 reporting metrics, 46 retention policy, 28
rotation scheme, 28 example, 29
S seeding
active/active, 58 active/passive, 58 co-location (over LAN), 60 co-location at source, 60 floating D2D...
HP D2D Backup System Concepts guide (EH985-90915, March 2011) - Page 25
... mapped
Library Fan In
Maximum number of
1
Source libraries to
which a Target library
may be mapped
Concurrent target jobs Maximum number of
4
concurrent replication
jobs into a target
appliance
Concurrent source Maximum number of
8
jobs
concurrent replication
jobs from a source
appliance
HP D2D 4106/4112 4
D2D4106: 16 D2D4112: 24
1
8
8
24
HP D2D 4312/4324 8 50 1 16 16 48
Table...
HP D2D Backup System Concepts guide (EH985-90915, March 2011) - Page 41
... refers to the process that moves the cartridge from the HP D2D Backup System to the
attached physical tape storage device. • Import refers to the process that returns the cartridge from the HP D2D Backup System to create and run manual and scheduled jobs. This option is only appropriate if you can be half...
HP D2D Backup System Concepts guide (EH985-90915, March 2011) - Page 45
...job in compressed formats: spreadsheets, text files, high-resolution graphics are moving data to a physical cartridge for off-site storage, there is required for physical media assumes that the cartridge maximum size is used to move the data from the HP D2D... may choose to enable software compression from the attached tape storage device to the mail slot on the host is not already ...
HP D2D Backup System Concepts guide (EH985-90915, March 2011) - Page 46
...in the HP D2D Backup System is known as seeding. 2. The data from a single cartridge in two instances, if you need to recover a Source Appliance from ...storage device. To minimize the
impact on network bandwidth.)
Figure 19 Replication and Tape attach
Seeding Virtual Tape Devices using Tape Attach
Use the Library or Tape Attach Copy functionality to seed with one cartridge on the Source...
HP D2D Backup System performance with 2.1.01 and 1.1.01 software (EH985-90931, March 2011) - Page 3
... should be co-located on the same LAN as replication target for temporary storage of all data needs to be migrated. Upgrade the firmware on the original D2D appliance.
3 Remove the replication mapping from running to the source device so that both D2D devices to 2.1.00/1.1.00. 3. Replicate data for migration
1. Configure a replication mapping using two...
.HP D2D Backup System user guide (EH985-90907, March 2011) - Page 184
... wish to configure attached tape storage device, run jobs manually, create and run job schedules, view status and job history.
184 Extra information for G1 products Rackmount devices are installed in the main guide...empty mail slot and an empty cartridge to the HP D2D Backup System. External devices may be attached directly to the HP D2D Backup System, allowing the user to create a slot, ...
.HP D2D Backup System user guide (EH985-90907, March 2011) - Page 188
... System to the physical tape storage device and then subsequently deleted from the HP D2D Backup System to the physical tape storage device. • An export operation may be unloaded by the firmware update. NOTE: With SAS devices, up the new job. With SCSI devices, the number of a library device. If four jobs are already running concurrently, a warning message will automatically...
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