Filter
Top Products
Chapter 2: About Your HostRAID Controller l15
HostRAID Controller Features
● Port multiplier support— You can connect one SATA drive enclosure with a port
multiplier to 1225SA HostRAID controller.
Note:
To find out the version of the port multiplier, refer to the drive enclosure documentation.
Adaptec supports SiI3726 with one 3 Gbps SATA II host interface and five SATA device
ports. We support only 3Gbps NCQ enabled drives.
Note:
NetWare does not support drive enclosures with port multipliers but supports eSATA drives.
● Greater than 2 TB support—You can create and manage HostRAID arrays which are bigger
than 2TB size. Hence,users can use the current and future high capacity hard disk drives
above 750GB.
● Flash ROM for updates to controller firmware.
● Event logging and broadcasting, including messaging for alphanumeric pagers.
● Support for Adaptec Metadata Format (AMF) allowing the migration of simple volumes
and arrays to Adaptec RAID controllers.
● Multiple options for creating and managing RAID arrays—A full software application
(Adaptec Storage Manager), a BIOS-based utility, and a command line utility. See
Managing Your Storage Space on page 50 for more information.
● Support for disk drive hot swapping.
● Support for disk drive enclosures with SAF-TE enclosure management hardware.
Array Level Features
● Support for RAID 0, 1, 10, and simple volumes with these HostRAID limitations:
● RAID 0: support for max. six drives with SAS and max. four drives with SATA
● RAID 10: support for max. four drives
● RAID 1 is build with two drives always
The maximum number of arrays per controller is two.
The maximum number of global hot spares per controller is one.
● Hot swap rebuild of fault tolerant arrays through the operating system.
● Support for automatic failover, so arrays are automatically rebuilt when a failed disk drive
is replaced (applies to redundant arrays in SES2- or SAF-TE-enabled disk drive enclosures
only).
● Global hot spare protecting every fault tolerant array that the drive has enough available
capacity to protect.
● Support for migration:
● Simple Volume to RAID 0
● Simple Volume to RAID 1
● (SATA-only) Native command queuing (NCQ), which lets disk drives arrange commands
into the most efficient order for optimum performance.