Redundant Array of Independent Disks (RAID)|
1996, we've been offering RAID as
part of our comprehensive solutions in disaster
planning and recovery. In the event of a hard drive failure,
RAID systems afford you some extra peace-of-mind and
recovery options, when properly implemented.
a supplement to, not a replacement for a
well-designed backup strategy. RAID actually adds to
the complexity of installation, and on-going
operations. Mostly, it creates a much higher demand on
compatibility. A RAID system does NOT provide
absolute fool-proof protection, contrary to popular
believes. It simply provides an extra layer of
safety net against a specific form of risk ― namely,
single hard disk failure, which happens to be the
most common hardware failure.
Left: Vicky removing a drive from Promise RAID
while SBS is running.
|Common risk factors not mitigated by
- RAID controller failure
- other system hardware failure:
motherboard, memory, CPU, etc.
- multiple-drive failure
- power supply unit glitch/failure
- building power glitch/failure
- electro-static discharge issues
- ventilation problems
- lightening damage
- software corruption
- software bugs
- human sabotage
- malware attack/infection
- human errors
- equipment theft
- natural disasters: flood, fire,
We offer custom-built RAID 0, 1, 1+0, and 5 subsystems,
in both internal host-based adapters + drives, and external
self-contained units with SCSI interface. External units come standard with
hot-swappable carriers and lockable cabinet. Internal RAID
are available with optional hot-swappable carriers and lock
mechanism. We also offer software RAID solutions.
||Much Higher Risk!
|Wasted Disk Space
||33% to 20%
RAIDs Compared. Against baseline of single
standard hard drive.
To RAID or not to RAID (and which RAID) is a very
complex but important question, which warrants in-depth
examination. The goal is to minimize overall cost of
operations. It is worth noting that majority of small
business sites with RAID ended up with a net loss
(rather than net savings) due to misunderstanding, flawed
implementation, and lack of recovery strategy and
Network-Attached Storage (NAS)
Our Poor Man's Server (PMS) series are essentially
NASs. The latest version is PMS 4.3, which is based on
Windows 2000 Professional. Bravo support for all previous PMS 3.x
versions (Win98-based) ceased as of August 2005.
We also offer SOHO NAS solutions from Maxtor, Snap
Appliances and Iomega.
We no longer offer custom-built NAS appliances based on
Promise chassis and interfaces.