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Advanced features, Dvanced, Eatures – Dot Hill Systems SANnet II 200 User Manual

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Supported memory type

SDRAM memory for enhanced performance. Fast page memory
with parity for enhanced data security. ECC-protected.

Read-ahead operation

Intelligent dynamic read-ahead operation for sequential data
accessing

Multi-threaded operation

Yes

Scatter/gather supported

Supported

I/O sorting

Supported. Optimized I/O sorting for enhanced performance

Variable stripe size

RAID5:
Optimization for random I/O (32k), optimization for sequential
I/O (128k), user selectable.
RAID3:
Optimization for random I/O (4k), optimization for sequential I/O
(16k), user selectable.

Advanced Features

Drive low-level format

Supported

Drive identification

Supported
Force the drive to light on the activity indicator for user to
recognize the correct drive.

Drive information listing

Supported
Drive vendor name, model number, firmware revision, capacity
(blocks), serial number, narrow/wide negotiations and current
SCSI speed.

Drive read/write testing

Supported

Configuration on disk

Supported
The logical drive information is recorded on drive media.

Save/restore NVRAM to/from disks

Supported
Save all the settings stored in the controller NVRAM to the logical
drive members

Save/restore NVRAM to/from file

Supported
Save all the settings stored in the controller NVRAM to a file via
GUI or CLI on user’s computer

Host LUN geometry & user configurable
default geometry

Capacity <64GB: Head=63, Sector=32, Cylinder=?
(depends on capacity)
64GB(depends on capacity)
128GB(depends on capacity)
256GB(depends on capacity)
512GB(depends on capacity)
1TB(depends on capacity)

User configurable geometry range

Sector: 32,64,127,255 or variable

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