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What
are the essential qualities of a server rack? Give
me a checklist to compare Hanut server racks with
other server racks available in the market. How
does Hanut server racks compare with its competitors? |
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Q.1 |
Why
Server cabinet? What are the benefits of server
cabinet? Please justify that I should buy a server
cabinet for my servers? |
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Ans. |
If
you are starting to run out of room and want to
move up to a "real" computer room environment,
you should explore rack mounting.
It may seem hard to justify spending thousands of
dollars on inert pieces of metal, but trust me,
it's worth it.
Comment by Mr. Eric Pearce in his article: Rack'em
and Stack'em. Full article is available at O'Reilly
system & network administration webpage.
The IT function is becoming more and more important
in business organizations worldwide. So it is necessary
to keep the servers and other IT hardware in a consolidated,
systematic and secure manner.
Server cabinets like Hanut “Extra-Deep”
server cabinets provide physical security and prevents
unauthorized access to critical IT equipment. Server
cabinets significantly improve space utilization
and cable management.
Server cabinets enhance the: |
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Security |
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Manageability
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Serviceability |
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Reliable
functioning of servers and other important IT hardware.
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Server
cabinets are a smart and worthwhile investment. |
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Q.2 |
What
are the essential qualities of a server cabinet?
Give me a checklist to compare Hanut “Extra-Deep”
server cabinet with other enclosure in the market.
How does Hanut compare with its competitors? |
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Ans. |
| Factor
/ Feature |
Hanut |
Others |
Others |
| Extra-Depth
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Yes |
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| Front-to-back
server grade ventilation |
Yes |
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| Integrated
vertical cable channels |
Yes |
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| Comprehensive
range of accessories |
Yes |
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| Special
anti-earth quake accessory kit |
Yes |
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| Durable
textured polyester powder coat finish |
Yes |
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| Individually
marked U heights |
Yes |
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| Ships
fully assembled |
Yes |
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| Short
rear door |
Yes |
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| Baying
/ Coupling capability |
Yes |
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| Provision
for extra - stability (stabilization plate
and ballast kit) |
Yes |
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Quality
Assurance
ISO 9002 Quality System |
Yes |
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| Toll-free
FAX number |
1-600-211405 |
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| Secure,
fast & convenient ordering system |
Yes |
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| Technical
Consultation |
Yes |
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Why
these factors / features are important? |
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Get
Server Cabinet buying guide with explanation. (HTML
format) (PDF format) |
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Q.3 |
What
is the benefit of Extra-Depth? Why do you need the
Extra-Depth? |
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Ans. |
The
800 mm deep cabinets are outdated / not suitable
for housing rack mount servers and many other active
IT hardware.
Servers in general and rack-mountable servers in
particular are becoming slimmer and deeper. The
800mm deep cabinets already do not meet the depth
requirements of many rack mount servers. For instance:
Sun recommends 36" (900 mm) deep rack cabinets
for its E2220R and E420R enterprise servers, H-P’s
popular rack optimized server Netserver 6000r is
over 800mm deep and Dell’s VERSARails, which
are required for mounting Dell’s rack-mount
servers, require enclosure to be least 880mm deep.
"We use 900mm deep racks, the IBM Servers require
the depth for two reasons - the servers are really
long, and the cable management and slide rails protrude
beyond
the end of the server.
We have just been through the pain of developing
a racking standard - and 900 is what we decided
on. :-)"
A comment posted on mailing list SAGE-AU.
An overwhelming majority of server cabinets available
in USA are 900mm or more deep. Server cabinets like
Compaq 9000 series universal racks, Acer Altos series
racks, APC NetShelter enclosures, Dell PowerEdge
series racks etc. are all 900mm or more deep.
The greater overall depth (900mm or more vs 800
mm or less) in a server cabinet allows more space
in front and rear for routing cables thus enhancing
cable management.
Go
for Hanut "Extra-Deep" server cabinets
to protect your investment. |
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Q.4 |
Why
do you need front to back computer server grade
ventilation in server cabinets / server racks? Is
ventilation from side panels ok? |
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Ans. |
To
dissipate heat, rack mount servers suck air from
the their front and exhaust hot air from their rear.
Therefore front to back computer server grade ventilation
is a must in all server cabinets. Premium server
cabinets like Compaq 9000 series universal racks,
Acer Altos series racks, APC NetShelter enclosures,
Dell PowerEdge series racks etc. all have this type
of ventilation.
Ventilation from side panels as provided by some
cabinet manufacturers in India in place of front
to back ventilation is inadequate and unsuitable
for rack mount servers. This type of ventilation
is also not adaptable to multi-bay configuration
where two or more server cabinets are coupled side
by side.
Front to back computer server grade ventilation
is not an optional feature but a must have feature
in a server cabinet.
For technical detail please read our note:
Importance of front to back server grade ventilation
in server cabinets
( front to back ventilation.pdf <176 kb>)
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Q.5 |
What
are the benefits of Integrated vertical cable channels? |
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Ans. |
Integrated
vertical cable channels offer two main benefits
over ordinary vertical cable managers.
Firstly, they save customers money. With four integrated
vertical cable channels available for routing power
and data cables in the Hanut server cabinets, there
is no need for customers to buy separate vertical
cable managers, in most installations.
Secondly, integrated cable channels take substantially
less of server cabinet space in comparison to vertical
cable managers, meaning more space for equipment
and less clutter in the server cabinet |
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Q.6 |
Hanut’s
vertical mounting rails (uprights) are L-shaped.
Are L shaped uprights common or rare in server cabinets? |
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Ans. |
L-shaped
vertical mounting rails / uprights are the most
common. L-shaped uprights offer the least possible
interference to rails of servers and other rack-mountable
hardware. ?- and C-shaped uprights are not common.
19" mounting
holes are either round or square. Square holes
are better than round holes. They can mount equipment
with round hole mounting provision easily. The
reverse is generally not true. Hanut's 19"
mounting holes are SQUARE.
L-shaped mounting
rails and square mounting holes are two of the
many design features of Hanut that allow it to
accommodate a wider range of rack mountable equipment.
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Q.7 |
Hulasi
offers a comprehensive range of accessories for
server cabinets / server racks. So what? |
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Ans. |
Accessories
supplement the server cabinet in enhancing the security,
serviceability, manageability and reliability of
mounted servers and other IT hardware. In addition
to all commonly required accessories like shelves,
power distribution unit etc., Hulasi offers many
special accessories e.g. – anti-earthquake
kit, KVM / console switch etc. to best meet its
customers’ requirements.
Hulasi
is committed to offering improved and/or new accessories.
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Q.8 |
Compatibility
issue: Server cabinet accessories and rack mountable
servers. |
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Ans. |
Hanut
server cabinet accessories have been designed for
900mm depth to ensure full compatibility with rack
mountable servers.
Most
rack mountable servers require that the front
and rear 19" mounting rails be at least 28"
(711mm) apart.
But accessories designed for 800mm depth mount
when the front and rear mounting rails are approximately
24" (610mm) apart. è Problem. Compatibility
issue.
Hanut
server cabinet accessories mount at approximately
28.5" (724mm). è Compatible mounting
with rack mount servers. No problem.
Are
others offering you accessories that are designed
for 900mm depth or outdated 800mm depth?
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Q.9 |
What
is the advantage of short rear door as compared
to full length rear door? |
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Ans. |
Short
rear door in place of standard full-length rear
door further simplifies cable routing to and from
the server cabinet. Cable routing through short
rear door is easier in comparison to cable routing
through the base.
In
a cabinet with full length rear door cables have
to be routed through the base of the cabinet.
Because of insufficient space between the base
and the floor cabinets often have to be placed
on a raised platform. Constructing raised platform
takes time and money.
With
cables routed through the gap between the short
rear door and cabinet's bottom there is no need
to put the server cabinet on a raised platform.==>
A major saving of money and time!
Short
rear door is another "easy to use" feature
of Hanut Server Cabinets – the preferred
cabinets for rack mount servers.
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Q.10 |
Is
Anti-earth quake kit essential? |
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Ans. |
No.
It's recommended for extra protection as a part
of disaster management / prevention plan. |
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Q.11 |
Ventilation:
I am ordering roof mount exhaust fan kit. Should
I be concerned about front to back server grade
ventilation? |
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Ans. |
Roof
mount exhaust fans are certainly helpful in thermal
management But they are not / can't be substitute
for server grade front to back ventilation (via
perforated front and rear doors)
In an enclosure
with server grade front to back ventilation roof
mount exhaust fans are not needed so buy an enclosure
with proper front to back ventilation.
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Q.12 |
Ventilation:
Why we recommend fully vented "airmax"
front doors over glass front door? Why we don't
recommend glass front door? |
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Ans. |
Hanut
"Extra-Deep" server cabinets have been
especially designed for rack mountable servers.
Rack mountable servers require adequate front to
back airflow for heat dissipation.
Hanut's fully vented front and rear steel doors
with 64% vent space * allow server grade front to
rear airflow. Front
door with glass cannot provide sufficient open
area for front to back server grade ventilation.
Therefore we recommend fully vented steel doors
for Haunt server cabinet.
*
in the central portions.
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Q.13 |
Ventilation:
About Hanut's "airmax" front and rear
doors
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Ans. |
Hanut's
front and rear doors are designed to provide front
to rear server grade ventilation. Both the doors
have been designed to offer 64% vent space in the
central portions.
Doors with uniform
(throughout) 64% vent space are better than this
design only from ventilation point of view. But
when we compare increase in cost and incremental
benefit of these uniform 64% vent space doors
with Hanut's "airmax" doors we find
that Hanut's "airmax" doors offer better
value for money.
Vent space in
the central portion of the doors is much more
useful and effective than vent space in the side
portions. This is because air intake and exhaust
fans of rack mount servers and other active IT
hardware are in the central portion. In other
words, high vent space in the side portion of
the doors improves airflow only marginally.
Hanut's "airmax"
doors offer better value for money
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Q.14 |
Why
does Hulasi recommend leveling feet? Why Hulasi
does not recommend castors for server cabinets?
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Ans. |
A
server cabinet on leveling feet is significantly
more stable i.e. has significantly less possibility
of tipping over or moving from its location than
a server cabinet on castors.
So Hulasi strongly recommends leveling feet with
its server cabinets and not castors.
A comment posted in [SAGE-AU] mailing list
"Some racks
come with rollers on the bottom... I'm still not
sure _why_ the manufacturers do this. I usually
unbolt them and toss them in the bin because I
don't want my rack rolling around the machine
room".
[SAGE-AU] Racks
http://lists.sage-au.org.au\pipermail\sage-au\1998-October\011697.asp
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Q.15 |
What
are the advantages of the Baying capability of Hanut
Server Cabinets?
Save Rs. 5000 or more when you buy 2nd, 3rd, …
Hanut server cabinet. How? |
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Ans. |
Yes.
When you buy 2nd, 3rd, … Hanut server cabinet
you can save Rs. 5000 or more per cabinet thanks
to baying / coupling capability of Hanut server
cabinets.
Each
individually kept server cabinet requires two
side panels. But in multi-cabinet configuration,
where two or more Hanut server cabinets are kept
together, only two side panels (one at each end)
are required.
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| No.
of enclosures coupled together |
Saving
(no. of side panels |
Saving
(in Rs.) assume 1 side panel = Rs. 2500/= |
| 2 |
2 |
5,000 |
| 3 |
4 |
10,000 |
| 4 |
6 |
15,000 |
| 5 |
8 |
20,000 |
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Another
benefit of baying: Cabinets kept in multi-cabinet
configuration are much more stable than individually
kept server cabinets.
Hanut
server cabinets are ready for baying.
But
my company is buying only 1 server cabinet. There
is no saving. Why should I care about baying capability
and associated savings?
May
be today your organization needs only one server
cabinet. But as your organization and its IT infrastructure
grows it will probably need more server cabinets.
At that time it can enjoy huge savings thanks
to baying / coupling capability of Hanut server
cabinets.
Baying
/ coupling capability is a valuable option. Keep
this option.
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