Using multiple paths with load balancing, instead of a single path, can increase reliability through redundancy. See ServerProven for the latest information about the System x servers and drives support: Flash-backed cache module, power module, and power cable. Related publications and links For more information, see the following documents: Online Capacity Expansion Online Capacity Expansion OCE allows the capacity of a virtual disk to be expanded by adding new physical disks or making use of unused space on existing disks, without requiring a reboot. There are two types of available upgrades:
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Consistency checks can be scheduled to take place periodically. The following table lists the available primary upgrades, their capabilities, and types.
Online Capacity Expansion Online Capacity Expansion OCE allows the capacity of a virtual disk to be expanded by adding new physical disks or making use of unused space on existing disks, without requiring a reboot.
Certain upgrades cannot be applied to “out-of-the-box” controllers and require that other upgrades are enabled before applying these upgrades we call them secondary upgrades.
The primary feature upgrades, on which the secondary upgrades depend, are listed in their respective columns. This feature allows you to immediately start writing data to the virtual drive while the initialization is running in the background.
Patrol read is a background sentry service designed to pro-actively discover and correct media defects bad sectors that arise normally as a disk drive ages. These adapters also share a common set of upgrades, simplifying inventory management.
Consistency check verifies that all stripes in a virtual disk with a redundant RAID level are consistent. Related product families Product families related to this document are the following: Authors Ilya Krutov David Watts.
IBM 81Y4481 ServeRAID M5110 Sas/sata Controller for System X
The card serveraaid a number of features that are able to be implemented without rebooting the server. Support for System x and dense servers with Intel Xeon v3 processors Table 5.
The task is interruptible based on controller activity and host operations. Lenovo System x storage options product web page https: Up servwraid 63 drives are supported in a JBOD configuration. Introduction Did you know? WebBIOS is a utility that is built into the ServeRAID controller that allows you to configure drive groups and logical drives before installing or booting the operating system.
This product guide provides essential presales information to understand the ServeRAID M offerings and their key features, specifications, and compatibility.
See the ServerProven website for the latest information about the specific versions and service levels supported and any other prerequisites: Support for servers with Intel Xeon v2 processors Table 6. ServeRAID provides the ability to define a physical disk as a hot spare to replace a failed drive. For details, refer to the following web page: A hot spare rebuilds data from all virtual disks within the disk group in which it is configured.
ServeRAID M and Me SAS/SATA Controllers Product Guide (withdrawn product) > Lenovo Press
This technology represents a significant step forward in securing data on a disk drive from any unauthorized access or modification resulting from theft, loss, or repurposing of drives. This is a Features on Demand upgrade and only one upgrade is needed serveraie server; all M and M series adapters installed in the server will have this upgrade enabled automatically.
Consistency check for background data integrity Consistency check verifies that all stripes werveraid a virtual disk with a redundant RAID level are consistent.
With redundant paths to the same port of a servdraid, if one path fails, another path can be used to communicate between the controller and the drive. 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.
CacheCade software tracks data storage access patterns and identifies the most frequently accessed data. Patrol read can be activated by a manual command or automatically. SafeStore local key management provides the necessary management and protection of SEDs using a simple pass phrase, security key identifier, and security key file that can be set and applied to all SEDs assigned to a ServeRAID adapter.
FoD upgrades are software licenses.
IBM 81Y ServeRAID M Sas/sata Controller for System X | eBay
Flash-backed cache module, power module, and power cable. Management tools provide convenience for the configuration of logical volumes and alerting when errors have occurred or are about to occur. Fast initialization quickly writes zeros to the first and last sectors of the virtual drive.