IBM ServeRAID M1115 81Y4448 ユーザーズマニュアル
製品コード
81Y4448
ServeRAID M1115 SAS/SATA Controller for IBM System x
3
Consistency check for background data integrity
Consistency check verifies that all stripes in a virtual disk with a redundant RAID level are consistent.
The consistency check will mirror data when an inconsistent stripe is detected for a RAID 1 and will
recreate the parity from the peer disks in the case of a RAID 5. Consistency checks can be scheduled
to take place periodically.
The consistency check will mirror data when an inconsistent stripe is detected for a RAID 1 and will
recreate the parity from the peer disks in the case of a RAID 5. Consistency checks can be scheduled
to take place periodically.
Extensive online configuration options and advanced monitoring and event notification
Management tools provide convenience for the configuration of logical volumes and alerting when
errors have occurred or are about to occur.
errors have occurred or are about to occur.
Patrol read for media scanning and repairing
Patrol read is a background sentry service designed to proactively discover and correct media defects
(bad sectors) that arise normally as a disk drive ages. The service issues a series of verify
commands, and if a bad block is discovered, the card's firmware uses RAID algorithms to recreate the
missing data and remap the sector to a good sector. The task is interruptible based on controller
activity and host operations. The firmware also provides an interface where the patrol read task can
be initiated, set up for continuous operation, and terminated from a management application. Patrol
read can be activated by manual command or automatically.
(bad sectors) that arise normally as a disk drive ages. The service issues a series of verify
commands, and if a bad block is discovered, the card's firmware uses RAID algorithms to recreate the
missing data and remap the sector to a good sector. The task is interruptible based on controller
activity and host operations. The firmware also provides an interface where the patrol read task can
be initiated, set up for continuous operation, and terminated from a management application. Patrol
read can be activated by manual command or automatically.
Global and dedicated Hot Spare with Revertible Hot Spare support
A hot spare rebuilds data from all virtual disks within the disk group in which it is configured.
ServeRAID provides the ability to define a physical disk as a hot spare to replace a failed drive. Hot
spares can be configured as either global or dedicated. A global hot spare allows any physical drive to
be designated as a hot spare. A dedicated hot spare allows the user to assign a hot spare drive to a
particular array of the same drive type.
ServeRAID provides the ability to define a physical disk as a hot spare to replace a failed drive. Hot
spares can be configured as either global or dedicated. A global hot spare allows any physical drive to
be designated as a hot spare. A dedicated hot spare allows the user to assign a hot spare drive to a
particular array of the same drive type.
Single controller multipathing (failover) I/O load balancing
The ServeRAID's firmware detects and uses multiple paths from the controllers to the SAS drives that
are in enclosures. With redundant paths to the same port of a device, if one path fails, another path
can be used to communicate between the controller and the drive. Using multiple paths with load
balancing, instead of a single path, can increase reliability through redundancy.
are in enclosures. With redundant paths to the same port of a device, if one path fails, another path
can be used to communicate between the controller and the drive. Using multiple paths with load
balancing, instead of a single path, can increase reliability through redundancy.
WebBIOS and Human Interface Infrastructure (HII) configuration utilities for pre-boot array
configuration and management
WebBIOS and HII are utilities that allow you to configure drive groups and logical drives before
installing or booting the operating system.
installing or booting the operating system.
MegaRAID Storage Manager management software
MegaRAID Storage Manager is an easy-to-use advanced RAID management application that is used
across the entire family of ServeRAID M controllers. It allows you to configure, monitor, and maintain
drive groups, virtual drives, and advanced features with an intuitive GUI, reducing administrative
efforts and simplifying troubleshooting.
across the entire family of ServeRAID M controllers. It allows you to configure, monitor, and maintain
drive groups, virtual drives, and advanced features with an intuitive GUI, reducing administrative
efforts and simplifying troubleshooting.