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Cisco Reverse Telnet Escape sequence

Just a quick post on how to perform the escape sequence when you reverse telnet to Cisco routers/switches:

Ctrl-Shift-6

Ctrl-Shift-6

If you do a Ctrl-Shift-6 then x, it terminates the session and takes you back to the parent router. So doing the above allows you to stay on your current reverse telnet session. Thanks to Sam Wilson on this.

http://www.velocityreviews.com/forums/t485989-ending-reverse-telnet.html

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Drive Testin'

It’s a big mess I know, but I was working on this over the weekend and wanted to start the RAID initialization so when I came back on Monday I would be able to have it ready for me.

I’m doing some performance testing on the drives using HD Tune. I’ve set this up on the 3ware controller using a RAID 50. After I get some numbers off this, I’m going to go with a RAID 10, and a RAID 0 to see how they compare.

Just want to see what works and how good it works.

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Load Balancing Power Supplies

I was doing some research on creating redundant power supplies and ran into a few articles I just wanted to post.

http://www.electronicstalk.com/news/acw/acw113.html

Yo-Duh_87 actually pulled off exactly what I wanted to do with my Storage Pod build, but I can’t seem to order those part numbers anymore L

http://www.procooling.com/index.php?func=articles&disp=56&pg=1

Maybe I should have gone this route:

http://www.istarusa.com/server_power/1u_redundant/is-1500r4h1up.aspx

Still trying to find an EE to help me out with this…

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Backblaze Storage Pod Project - Price list

Let’s start this off with a list of items, prices, and the vendor where I got them from. I don’t like dealing with a lot of vendors so I tried to consolidate as much as I could to one vendor, and for most of the items I’d like to thank Jason from Zones on getting all these items price matched for me and for special ordering some for me.

I’d also like to thank Tim Nufire at Backblaze for blogging on the Backblaze storage pod, and putting up a parts list of his own at http://blog.backblaze.com/2009/10/07/backblaze-storage-pod-vendors-tips-and-tricks/

I’ll start off with the basic parts list, and then go over a few enhancements I wanted to add. Please keep in mind that I haven’t tested out these items so I don’t know whether it’ll work or not. Stick around, we’ll find out together…

Qty.

Item

Price$$ (each)

Vendor

Alt. Vendor

45

Seagate 2TB LP 5200RPM Drives

$129.99

Zones

NewEgg

1

3.3 GHz Intel Core 2 CPU

$284.93

Zones

NewEgg

3

2 Port PCIe SATA II Card

$18.07

Zones

NewEgg

1

4 Port PCI SATA II Card

$61.00

Zones

Addonics

1

Intel BOXDG43NB Mobo

$84.99

Zones

NewEgg

6

Mechatronics Case Fans

$25.21

Zones

Beyond Components

1

Kingston 4GB DDR2 RAM

$97.00

Zones

NewEgg

1

FrozenCPU Power Switch

$29.95

FrozenCPU

Zones

9

SATA II Cable

$2.49

Zones

NewEgg

12

Fan Mount (AFM02)

$0.62

QuietPCUSA

Zones

12

Fan Mount (AFM03)

$0.62

QuietPCUSA

Zones

100

Nylon Standoffs (PN954159)

$0.29

FastenerSuperstore

100

Nylon Screws (PN#336589)

$0.05

FastenerSuperstore

2

Power Supply Dampener

$5.85

QuietPCUSA

1

4U Enclosure w/custom color

$1007.00

Protocase

9

SATA Port Multipliers

$55.55

Protocase

Storage4Mac

45

Anti-Vibration Sleeves

$1.00

Protocase

AeroRubber

The above items are the exact same parts that the Backblaze blogged about. I wanted to enhance a few things on my system, but I also wanted to make sure in case some of my items didn’t work out all that well that I would be able to go back and build the exact same storage pod Backblaze had. Here’s the enhancements I have in mind (again… nothing has been tested yet:)

1) Dual redundant power supplies

a. Don Honabach from Extreme Media Servers proved he can power up the entire system with one 1250W PSU, so my next thought is why not have two 1250W PSUs be redundant?

i. http://extrememediaservers.blogspot.com/2009/10/wiring-up-pms-for-power.html

b. Parralleling power supply outputs for redundancy… seems easy enough, just need to find a good electrical engineer to help me out…

i. http://www.electronicstalk.com/news/acw/acw113.html

ii. The only problem is the 3.3V leads which may end up going lower than 3.3V once the diodes are put in.

2) Better motherboard

a. I went with the EVGA X58 4-way SLI Classified (I actually wanted to go with the dual processor mobo they just came out with, but that would have been a little over my budget.)

b. I wonder how the onboard SATA ports would perform with the multipliers?

3) Better OS Hard Drives

a. I went with 3 Intel SSD drives instead of the PATA drive

4) Better RAID support

a. From my understanding Backblaze went with a software RAID (I’m not a Linux guy at all, but Backblaze spoke about a mdadm utility which seems like software to me.)

b. I went ahead and purchased a 3ware 9650SE-16ML SATA RAID controller so I can test out how it performs, I also get the flexibility of going RAID 50.

c. BTW, from my initial thoughts I may want to make this a Win2008 machine.

5) Larger Drives

a. Backblaze used the 1.5Tb drives in their blog, but I’m going with the 2Tb ones. Backblaze did test these out before so there’s not much out of the ordinary there.

6) More network adapters

a. A couple of quad port adapters… just in case.

Qty.

Item

Price$$ (each)

Vendor

Alt. Vendor

2

Enermax Galaxy EVO EGX1250EWT

$280.00

Zones

NewEgg

1

EVGA X58 4-Way SLI

$469.00

Zones

TigerDirect

1

Cooler Master V8

$59.99

Zones

TigerDirect

2

Intel PRO/1000 PT Quad NICs

$397.97

Zones

CDW

3

160GB Intel X25M SSD HDs

$419.99

Zones

CDW

1

Intel I7-950 CPU

$569.99

Zones

TigerDirect

1

Corsair Core i7 XMS3 12GB RAM

$384.00

Zones

TigerDirect

1

3Ware 9650SE-16ML SATA RAID Ctr

$799.99

NewEgg

PC-PitStop

1

3Ware BBU-Module-04 (Battery)

$114.99

NewEgg

PC-PitStop

4

3Ware CBL-SFF8087OCF-10M cable

$79.96

NewEgg

PC-PitStop

Ok, so there is my parts list. Now on to take some pictures and document this entire project. J

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Building the Backblaze Storage Pod

Well, I've finally started to blog! A great start to this would be to start my projects with the BackBlaze Storage Pod.

About a year back I received an email from my previous boss regarding a really cool storage server idea from Backblaze (which is a company that does online backups...) a great company, I actually use them myself, you can visit them on the web at www.backblaze.com. The storage pod idea was thought up in order to design cheap cloud storage. I'll let you read their blog if you want some more information on this, but I also wanted to link to their site because all the information I got for this project was from their blog, and other bloggers who used their idea. To them I extend my thanks and gratitude for coming up with the project and sharing their ideas and adventures with everyone on the web, and so I follow suit to try to make this a growing project and document this build from the ground up.

http://blog.backblaze.com/2009/09/01/petabytes-on-a-budget-how-to-build-cheap-cloud-storage/

--mando

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