LSI MegaRAID CacheCade writes caching capabilities

CacheCade Corp. LSI MegaRAID controller that provides quick access to cache frequently used data on hard solid state (SSD) in reading and writing support software upgrades.

LSI MegaRAID CacheCade Pro 2.0 application speed I / O performance with SSD are to cache frequently accessed data. Software, Web 2.0, email, high-performance computing and finance, such as high I / O is designed for transactional applications. Caching software, LSI MegaRAID 9260, 9261 and 9280 to 6 GB SATA controller card and is working on a series of SAS.

LSI SSD cache read-only delivery of the first version of software a year ago CacheCade. MegaRAID CacheCade Pro 2.0 $ 270 price and distribution, system integrators and VARs can be used. CacheCade Partners in May, Dell PowerEdge RAID Controller LSI (PERC), H700 and H800 include Dell began selling the software.

"What I want to make a record very slowly close the gap between the main processor and hard drives," Scott Cleland, the channel for the LSI product marketing manager, said. "Hosts / O can be a problem very quickly, but I can not follow the traditional hard disk drives," he said.

LSI technology, the first software industry SSD read and write to a memory controller cache, he said.

LSI CacheCade users connecting to a server or set of controls allows you to upgrade. Cleland, user groups to create a CacheCade LSI MegaRAID Storage Manager server for the drive bay, hot-swappable, and stated that the SSD. The software automatically groups the data cache the most frequently consulted.

"The traditional cache as the SSD and HDD [hard disk] configurations, hard drives and SSD are exposed to the machine," said Cleland. "You CacheCade information about the operating system, file system and applications. Must haves, SSDs. SSD drive by caching? Home I am exposed to all traffic / S is not the controller. "

SSD is a practice, because the ability to objectively analyze the analyst, Jim, took time to write cache built in LSI, "said the write cache is extremely complex."

Read-only cache, data cache, the changes are copied to the hard disk is updated and at the same time. "Does the level of the processor instance, the cached copy is invalid. Hard drive, you must obtain the updated version, "said Handy cache read-only.

Write cache, copy the data is removed from the cache date is still to ensure that the original hard disk, then updated.

LSI at the same time, the cached copy Mirror Cache a feature to prevent data loss and is not yet updated the hard drive.

Handy is a fast read and write cache, the cache read-only, he said.

"Some applications of the [read and write cache] is not useful," said Handy. More to read and write, because "You are a very indifferent. For example, downloading software, read-only. These OLTP [switch online transaction processing] and other applications, a measure of balance is written 50-50. In these applications, is very important to read and write. "