Fast Flash Disks Certified "Solaris Ready"|
SABA, Israel, - August 4, 2003 - M-Systems today announced that its 3.5"
Fast Flash Disk products have received "Solaris Ready" Certification
from Sun Microsystems.
To earn the "Solaris Ready" designation, M-Systems' 3.5"
Ultra-Wide SCSI and 3.5" Narrow SCSI FFD products passed rigorous
independent testing and are now certified as compatible with Sun equipment and
the Solaris operating system.
New software tools from BiTMICRO Networks mean
You don't have to become a storage Einstein to use SSDs effectively
Calif. - July 29, 2003 - At SIGGRAPH 2003, BiTMICRO Networks announced
today the availability of the E-Disk SafeCapacity software suite to complement
its entire E-Disk solid state storage product line.
In most storage systems, a small set of data files account for a
disproportionately large amount of disk I/O. When identified, these "hot"
files will most often be database log files, heavily hit indices and tables -
all excellent candidates for migration to solid state storage.
SafeCapacity-Hotfile determines the most often accessed files and displays a
list of these files in a descending order of access. Using
SafeCapacity-Migration, administrators transparently relocate these hot files to
the fastest storage available in their environment.
The fact that files are relocated to faster devices is completely
unobservable to both users and applications. The appearance and attributes of
the files remain the same, while access to these files is transparently
redirected to the high-performance storage without any performance degradation.
This approach eliminates the need to reconfigure databases or applications while
increasing I/O throughput. End-users and IT staff will notice faster database
access, much improved response times and faster batch processing.
"IT managers have long since accepted the fact that solid state
storage technology offers one of the best returns in terms of throughput and
latency over any other type of secondary storage. However, determining optimum
SSD capacity and which hot files had to be relocated used to be an involved and
hit-and-miss exercise. With the advent of E-Disk SafeCapacity, BiTMICRO's
customers will now be able to unlock the potential of deploying E-Disk SSD
through a systematic and best-practices approach to attaining a well-balanced
storage architecture," says Rudy Bruce, President of BiTMICRO Networks.
Editor's comments:- in a
nibble last year
I commented that the SSD market was challenged by a lack of software tools
which could automate their successful integration without specialist skills. In
May this year Imperial
Technology released two software products, WhatsHot and Serv2Stor, to deal
with this issue. Today's news from BiTMICRO confirms this encouraging new trend
to help users get the benefits from SSDs without having to become storage
Texas Memory Systems Launches World's Fastest
External RAID Cache
Houston, Texas -
July 29, 2003 - Texas Memory Systems, Inc. released today the
RamSan-330 external storage cache.
The RamSan-330 turbo charges
storage by caching the most popular data and distributing it at maximum rates of
3 gigabytes per second bandwidth and 250,000 I/Os a second.
gigabytes of RAID cache was once an expensive luxury to data centers, the
RamSan-330's 16 to 64 gigabytes of fast RAID cache makes it available to any IT
storage environment. By installing the RamSan-330 in front of RAID devices,
bandwidth increases and response time decreases.
RamSan-330's four to eight 2Gbps Fibre Channel ports can be flexibly allocated
to servers, switches or storage products. This means that a single RamSan-330
can simultaneously serve as a cache for multiple Fibre Channel RAID, JBOD or
other storage devices. Storage vendors and solution providers have struggled to
meet the needs of end users with increasingly demanding application
environments, such as large, write-intensive databases. The RamSan-330 provides
the solution by invisibly accelerating storage to the speed of SDRAM.
End users can use the RamSan-330 to overcome the costly bottlenecks
associated with slow read/write performance across a large segment of data. It
can accelerate existing storage 250 times by providing up to 250,000 IOPS and 3
gigabytes per second performance from cache. This translates into a 2x to 25x
real performance improvement for applications.
The RamSan-330 is
transparent to the operating system. It automatically caches frequently accessed
blocks in its high-performance memory subsystem, improving read and write
performance. Three cache modes are available for each cached storage device:
write-through, write back, and read-ahead. The RamSan-330 delivers 3 gigabytes
per second full duplex internal bandwidth. The system is battery-backed and will
flush cache on external power failure simultaneously to the cached external
storage devices and to internal hard disk drives. The system includes hot swap
power supplies, hot swap backup hard disk drives, redundant fans and redundant
The Texas Memory Systems RamSan-330 is immediately available to
storage manufacturers and solution providers worldwide. Pricing starts at $46k
for a system which includes 4 x 2Gbps Fibre Channel ports in addition to the
full suite of TMS cache software.
publishes - Solid State Disks Buyers Guide |
Editor:- July 28,
2003 - STORAGEsearch.com today published its Solid State Disks
Buyers Guide which surveys products and prices in the range from $50 upto $2
Solid State Disks were the #1 most popular subject
accessed by STORAGEsearch readers in Q2 2003. But it's only recently that
prices have dropped to the level where they can fit into the budget for most
users. Most of the suppliers already in the market are specialist SSD companies,
and therefore unknown to users who have never bought these products or systems
before. So who do you choose? And how do you save time researching possible
One way - is price... I contacted every manufacturer of
SSDs in June to get contributions for this article - which is based on inputs
received by our publication date. It's organised into 3 main price bands, with
lowest cost at the top. Just scroll down the article until you see a budget,
technology or application which best matches your situation. ...read the article
Solid State Disks|
Solid state disks look and behave
similarly to conventional winchester hard disks. The access times are much
faster, (microseconds rather than milliseconds) but the cost per gigabyte is
very much higher. SSDs employ two main technologies:-
- battery backed RAM - mainly used for performance
There's a gray area in between
where the newer generation of flash disks can be used to provide performance
speedups in commercial server applications. However, the RAM based solutions are
nearly always faster.
- flash memory - mainly used for implementing hard disk
emulation in military and industrial environments in which the weight and extra
space taken by battery backup is not a feasible option. The simpler hardware in
flash systems provides greater reliability, but there is a "wear out"
factor related to the number of write cycles which makes it unsuitable for some
Nibble Re: Solid State Disks|
What can you do to make your
system run faster when you're already using the fastest processors, have filled
all your memory slots, and tuned up your application software?
were originally designed in the 1980's for use in real-time industrial and
military systems, where they not only provided a performance boost, but also
greater reliability because their solid state construction provided immunity
against shock, vibration, dust and temperature extremes which could destroy
conventional disk drives which use rotating magnetic media.
attraction of SSD's today is that they have an access time which is typically
200 times faster than the fastest hard drives. When used correctly in large
database systems SSD's can realistically double the total system response time.
Some applications can run even faster, provided that the SSD is large enough to
contain all the critical files which are constrained by disk access time.
SSDs are identical to conventional hard drives in their mechanical, interface
and software properties, they are literally plug and play devices. They can be
used in all the ways that you'd use a conventional winchester drive, such as
RAID, SAN and NAS systems, and models are typically available with SCSI or
fibre-channel native interfaces.
When using an SSD, make sure you are
using the fastest SCSI or FC adapter available for your system to get the most
benefit. Your vendor should be able to advise you on this.
only help you when your main constraint is access time. If your main system
constraint is data throughput, as for example in streaming video applications,
then almost any well designed RAID system based on conventional disks will give
you fast enough performance and you may not need an SSD.
is the only way to be sure that an SSD will give you the performance boost you
need, and that's when you sometimes discover that the real bottleneck is not
what you originally thought.
Talk to the SSD vendor about your
application. They're experts in the computer performance business. It's very
likely that they've seen similar problems before and they may even be able to
give you helpful hints about how to speed up other parts of your system.