3.1Standard features
Savvio® 10K.4 SAS drives have the following standard features:
•1.5 / 3 / 6 Gb Serial Attached SCSI (SAS) interface
•Integrated dual port SAS controller supporting the SCSI protocol
•Support for SAS expanders and fanout adapters
•Firmware downloadable using the SAS interface
•128 - deep task set (queue)
•Supports up to 32 initiators
•Jumperless configuration
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•Industry standard SFF
•Programmable logical block reallocation scheme
•Flawed logical block reallocation at format time
•Programmable auto write and read reallocation
•Reallocation of defects on command (Post Format)
•ECC maximum burst correction length of 520 bits
•No preventive maintenance or adjustments required
•Dedicated head load/unload zone and automatic shipping lock
•Embedded servo design
•Self diagnostics performed when power is applied to the drive
•Zone bit recording (ZBR)
•Vertical, horizontal, or top down mounting
•Dynamic spindle brake
•16MB data buffer (see Section 4.5)
•Drive Self Test (DST)
•Background Media Scan (BMS)
•Idle Read After Write (IRAW)
•Power Choice
Savvio® 10K.4 SAS
•Automatic data encryption/decryption
•Controlled access
•Random number generator
•Drive locking
•16 independent data bands
•Cryptographic erase of user data for a drive that will be repurposed or scrapped
•Authenticated firmware download
3.2Media description
The media used on the drive has an glass substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection.
6 | Savvio 10K.4 SAS Product Manual, Rev. A |