Architectural Description
The Astra ES is a Fibre Channel or Serial Attached SCSI (SAS) host, SAS+SATA disk, subsystem suitable for Direct Attached Storage (DAS), Storage Area Network (SAN), and Expanded Storage.
Only hard disk drives from Excel Meridian Data are approved for use in this solution.
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Features and Benefits
Highlights
•Dual channel active/active, failover/failback RAID controllers
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•Supports for Serial Attached SCSI (SAS) and Serial ATA (SATA) 3 Gb/s drives simultaneously in the same
•Dual Fibre Channel and SAS host ports provide
•JBOD expansion support through a 3 Gb/s SAS x4
•Simplified remote management with a comprehensive embedded
•Five years complete system limited warranty including email and phone support with highly experienced technical support technicians.
•Resilient data protection features such as Predictive Data Migration™ and PerfectRAID™ provide rock solid data protection
•LUN Mapping and Masking bring flexibility for multiple application and OS support on the same storage subsystem
•Open architecture, industry’s most comprehensive support for SAS and SATA hard drives and standards- based management interfaces
•Support for the industry standard Disk Data Format (DDF from SNIA) ensures interoperability and drive roaming even among different RAID vendors
•Compatible with leading SAS hard drives, host bus adapters and RAID controllers
Subsystem and Controller Features
Controllers:
Drive Support: Up to twelve 3.5" x 1" hard disk drives: SAS 3Gb/s, SATA II 3Gb/s and 1.5Gb/s. SATA drives require a MUX Adapter in dual I/O module configuration
Supports any mix of SAS and SATA II 3Gb/s or 1.5Gb/s drives simultaneously in the same system. Staggered physical drive
External I/O Ports (per controller): Dual
Data Cache: Shared 512 MB predictive data cache (expandable to 2 GB); Automatic write cache destaging; 72- hour battery backup (for 512 MB cache).
Command Queue Depth: 512 commands per Astra ES system (up to 1024 commands with 512 MB memory).
Operational Features
RAID Levels: RAID 0, 1, 1E, 5, 6, 10, 50, and 60 – Any combination of these RAID levels can exist at the same time.
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