Monday, July 28, 2008

Disaster Recovery: Planning for success

Can anyone think of anything else to put on my short list? Keep in mind we only support about 60 users internally and 30 customers externally.

The battery backup and cooling aren't as critical at this point since they will depend largely on what hardware we end up getting. We are already licensed for Symantec Backup Exec and will likely continue with that software. The backup hardware will depend on the other hardware selected.

I think our biggest challenge is going to be getting a SAN that can provide enough spindles to separate workloads without scaling out to several shelves or wasting a lot of storage.

Blade Chassis

Vendor / Model
HP c30006U8
HP c700010U8 or 16Can use full-height or half-height blades
Dell M1000E10U8 or 16All servers are half-height, I/O blades can be either half-height or full-height.
IBM BladeCenter E7U14Options List
IBM BladeCenter S7U6

2 dedicated disk storage module bays
Options List

IBM BladeCenter H9U14Options List

Server Blades

Vendor / Model
Max Mem
Local Storage
HP Proliant BL460c2x Xeon64GB2x SAS or SATAhalf-height
HP Proliant BL465c2x Opteron32GB2x SAS or SATAhalf-height
HP Proliant BL480c2x Xeon48GB4x SAS or SATAfull-height
HP Proliant BL685c4x Opteron64GB2x SAS or SATAfull-height
Dell M6002x Xeon64GB2x SAS or SATAhalf-height
Dell M6052x Opteron64GB2x SAS or SATAhalf-height
IBM HS121x Xeon24GB2x SAS or SATAN/A
IBM HS212x Xeon16GB2x SAS or SATAN/A
IBM LS212x Opteron32GB1x SASN/A


Vendor / Model
Drive Type(s)
Max Capacity
Max Hosts
HP StorageWorks 1200riSCSI12SAS or SATA12TB, 1 enclosure, 12 drives
There are expansion options, I just didn't understand them.
HP Storageworks SB600c (blade)iSCSI8SAS1.16TB (8 x 146GB 10K SFF SAS)

Dell PowerVault MD3000i iSCSIiSCSI15SAS, SATA45TB, 3 enclosures, 45 drives16
Dell/EMC CX3-10ciSCSI, FC15FC, SATA24TB FC, 60TB SATA, 4 enclosures, 60 drives64
Dell PowerVault NX1950iSCSI15SAS, SATA30TB, 2 enclosures, 30 drives

IBM DS4700FC16FC, SATA33.6TB SATA, 112TB FC, 7 enclosures, 112 drives16
IBM DS3400FC12SAS, SATA14.4TB SAS, 48TB SATA, 4 enclosures, 48 drives

EMC CLARiiON AX4iSCSI, FC12SAS, SATA60TB, 5 enclosures, 60 drives

Network Switches

Vendor / Model
Ethernet Ports
HP ProCurve 2900-24G244x SFPGigLayer 3/4
HP ProCurve 2900-48G484x SFPGigLayer 3/4
HP ProCurve 3400cl-24G204x mini-GBICGigLayer 3/4
HP ProCurve 3400cl-48G444x mini-GBICGigLayer 3/4
Cisco Catalyst 3560-24TS244 SFPGigLayer 3/4
Cisco Catalyst 3560-48TS484 SFPGigLayer 3/4


Vendor / Model
VPN (Incl/Max)
Watchguard Firebox X750e UTM Bundle50/100
Sonicwall NSA 350050
Cisco ASA 5510 Security Plus250
Cisco ASA 5520750

Cooling Solutions

Vendor / Model
Knürr CoolAdd
Knürr CoolTherm
APC Rack Air Removal Unit SX

Battery Backup (UPS)

Vendor / Model
Liebert GXT2
Liebert PowerSure PSI
APC Symmetra RM
APC Symmetra LX

P.S. I apologize if anyone's RSS reader went haywire as I edited this like mad for the last 45 minutes. I copied the above out of our wiki and pasted it in, and Blogger did some crazy stuff with the tables. I had to put negative top margins on them or they had anywhere from 150px to 350px of extra space above them.


  1. Charles,

    We have been using Lefthand's ISCSI SAN for over 2 years and it has worked out very well for us.

  2. Thanks for the suggestion, I had looked at Left Hand Networks and was immediately turned off because their site is nearly all Flash. Anything not Flash is PDF, and the combination leaves the rest of the site rather lackluster and uninformative. It has made it more difficult to quickly get the information I need. Based on your recommendation I've contacted them and look forward to hearing about their products. :-)