Imorgon View and Report Accelerator Server Hardware Specifications and Domain Requirements

Imorgon View and Report Accelerator Server Hardware Requirements 

The following information is per each server. Customers will need to create two (2) identical systems based on the following specifications for redundancy, one for the Primary and another for the Stand-by Secondary server.

Virtual Machines - The requirements are identical. Please be prepared to provide equivalent number of cores allocated and block storage for OS and SQL partitions. You are welcome to start with smaller configuration and tune up to higher performance as the need grows, however please be mindful that Imorgon is a "bursting" application therefore it requires peak performance when images are requested, queried from the database and image compression or decompression operations are performed. Therefore it is not wise to place Imorgon on an over-subscribed hosting nodes.

Minimum Recommendation For ImorgonView
Sufficient for Report Accelerator
Optimum Recommendation
(Imorgon View)
CPU Motherboard
(Note 1) (Note 8 on VM)
Intel Pentium Dual Core CPU
64-bit capable
Intel Xeon Quad Core CPU x 2
64-bit capable
HP ProLiant DL 180 G6
Intel Xeon 5500
Memory 8 GB
8 GB for Medium Size Hospitals and Report Only Configurations
16 GB for Single Large Hospitals
32 GB for Very Large Hospital Systems
 4 x 2 GB PC3-10600E DDR3
RAID Controller
SATA Hotswap RAID-5 Capable Controller (usually extra add-on purchase)
 SATA Hotswap RAID-5 Capable Controller (usually extra add-on purchase)HP Smart Array Controller p400
Local System Storage
500 GB SATA RAID-1, split into two drive letters. C: and D: with 50% of the total storage. (SCROLL WAY DOWN BELOW FOR THE PARTITION INFO!)
1TB RAID5 Array Split into approximately
C: 80 GB [OS] (Note 3)
S: 272 GB [SQLDB] (512 GB for Large & Very Large Hospitals)
T: 136 GB [SQLLOG] (256 GB for Large and Very Large Hospitals)
R: (See Below)

2 x 250 GB Drives for C:
3 x 1 TB RAID-5 drives for S:, T: and R:
SQL Backup Space
External 1TB USB2 Drive mapped to R:
R: 512 GB [SQLback] (Note 4)  \\\backup\sql
Image Storage Partitions
400 GB to 4 TB each for Imorgon View
250 GB each for Report Accelerator
400 GB to 4 TB

250 GB each for Report Accelerator

 (Note 5)
Removable Media 
 DVD Rom Drive
 DVD Rom Drive
Network  2x  Gigabit Ethernet Interfaces
2 x Gigabit Ethernet Interfaces
10 GB Fiber Adaptor for Very Large Hospitals
Power  Single Supply
Dual Supply
Remote Management
Remote Power On/Off and Console such as HP Lights-Out or IBM Remote Server Adapter Remote Power On/Off and Console such as HP Lights-Out or IBM Remote Server Adapter, or IPMI video card.  HP Lights-Out 100c
Operating System
Microsoft Windows 2008 R2 Standard Edition (not Enterprise Edition)
Standard 5-user CAL (Note 1)
Microsoft Windows 2008 R2 Standard Edition 64-Bit  (no need for the Enterprise or DC Edition. Must be R2 or later.)
Standard 5-user CAL
(Note 1)
Microsoft Windows 2008 R2 Standard Edition
Standard 5-user CAL
(Note 1)
Database Microsoft SQL Server 2008 Standard Edition (not Enterprise Edition) (Note 6)
Microsoft SQL Server 2008 R2 Standard Edition 64-Bit (not need for the Enterprise Edition and must be R2 or later) (Note 6)
Microsoft SQL Server 2008 Standard Edition

(1) Imorgon servers will only operate on 64-bit architecture using Microsoft Windows 2008 Standard Edition and Microsoft SQL Server 2008 starting 2010. Enterprise and Datacenter Editions are also acceptable but in general that's an "over-kill" for this purpose only. 
(2) Servers are in 64-bit architecture is in place, Imorgon may require more memory for improved performance.
(3) If you have an external iSCSI or SAN configuration, R:, S:, and T: drives may be served up by those since the SQL Server requires BLOCK I/O device. 
Block storage is normally abstracted by a file system or database management system (DBMS) for use by applications and end users. The physical or logical volumes accessed via block I/O may be devices internal to a server, directly attached via SCSI or Fibre Channel, or distant devices accessed via a storage area network (SAN) using a protocol such as iSCSI, or AoE. DBMSes often use their own block I/O for improved performance and recoverability as compared to layering the DBMS on top of a file system.
(4) Backup space can be SAN, Removable USB2 Drive, or Windows Share from a Network Storage Device/File Server. However, for this to work, all systems must be on a domain and all of the Imorgon services should run on a service account within the domain.
(5) 400 GB is the size of commonly available LTO or DLT drive, therefore by partitioning each drive this way, the entire partition can fit in one tape if you are using tapes. Customer may partition these in any size. It may be served up by the SAN or Windows Share. Instead of drive letters, they can be mounted as Windows "Mount Points"
(6) Imorgon will install and configure the SQL Database as well as partition the drives. Please have the install media ready on the day of installation. Our system will be utilizing SQL Server 2012 in mid 2012. Until then we will purchase the 2012 licenses and then opt to downgrade to 2008 R2.
(7) Customers are expected to purchase Device Specific CAL per Imorgon Workstation from Microsoft. This is a legal document between Microsoft and the customer and it is a responsibility of the customer to be compliant. For more information about this, please look at this URL:
(8) We have experience using Virtual Machines from VMware and Microsoft Hyper-V, however due to the CPU power and Disk Space requirements the Imorgon Servers will require you to prepare a hefty and undersubscribed machines to implement this.
Inadequate and incorrectly implemented VMs will almost certainly cause a severe performance and reliability issue when inexpensive dedicated CPUs could have prevented these issues. If you currently do not have an in-house expertise in VMs, we suggest you do not implement the VM based solution at this time because performance issues are very difficult to diagnose.

System Partitioning Information

Drive Letter Recommended Min Size (GB) Purpose
 C:  136 (Local) Operating system. Applications, Web Applications
 R:1 TB (San/NAS or Local)
SQL Backup partition. Most customers provide this space as an external NAS. We perform incremental backups good for up to 2 weeks worth of backup and rotate the space.
 S: 300 GB (SAN/Local)
512 GB for Large and Very Large Hospitals
SQL Database Files
 T:  256  GB (SAN/Local) SQL Transaction Log Files
 D/E/F/G etc.  400 (SAN/Local) Image data storage partition can be set to any size.  However, we suggest making each partition the same size as the uncompressed LTO or DLT tape volume size of the tape technology you currently own so that each partition can correspond to a single backup tape.  Mounts can be made into "mount points" instead of drive letters. Each partition should not exceed 4 TB.

Storage System Recommendations

Almost all modern (deployed or updated in since 2008 or so) storages and SANs are totally acceptable for use in Imorgon. 

For SQL Data and Logs partitions we recommend that high quality SAS based RAID implementation sustaining more than 6 Gb/sec , a minimum of 80 IOPs rating the RAID Controller and the Host Bus Adaptor is recommended. Or a local set of RAID combined with a mid-grade or better RAID controller. 

For Image Data storage, we can tolerate a less performance RAID implementation, for example disks consisting of 7200 RPM SATA drives are really fine especially if the bandwidth is aggregated in a minimum of a RAID-5 set with a minimum of 80 IOPs and > 6 Gb/s performance can be achieved easily with RAID-5 or better configuration.

Windows compatible Network Attached Storage in Image Storage can also be utilized, however, this will cause more performance degradation. If such arrangements must be made then we highly recommend that NASs to be hosted on a second Gigabit Ethernet network separate from the imaging network to reduce network contentions.

Disk Redundancy Recommendations

The RAID configuration afford us to be able to lose a disk or even two at the same time.

If none of this makes sense to you, please think of it this way. If you have a BBQ party with a number of people and you know given the number of guests, you know that normally up to a party consisting of up to 10 guests, someone is very likely drop 1 jar of mayonaise, and if you have 12 guests, you have had an experience that there were several times that you've lost 2 jars of mayonaise.

So, likewise, we recommend that up to 10 guests we reserve 1 jar of mayonaise as a "just in case spare" and if we have any more than that, for every 12 guests we buy 12 jars but reserve 2 jars. In this case, at the worst case, you know you have enough in your pantry to go through the night.

Please also note that in this analogy, any bottle you purchased can be dropped. In other words, it can be the bottle close to the edge of a table, the one in the middle or one next to it. Likewise, any one of the disks can fail and the party can go on, a sophisticated electronics will know which one of the jar was dropped and will take care of it automatically.

Capacity Using 3 TB Disk Unit Number of 3 TB Drives
 to Buy
 RAID Class
 3 TB 2 1 (yes 1)
 6 TB 3 5
 9 TB 4 5
 12 TB 5 5
 15 TB 6 5
 18 TB 7 5
 21 TB 8 5
 24 TB 9 5
 27 TB 10 5
 30 TB 12 6
 60 TB 24 6
 90 TB 48 6
 120 TB 96 6
 240 TB  192 6
 Above 240 TB     Call (650) 352-5704 

  • When there are only 2 disks then we use RAID-1 which is a fancy way of saying create a mirror image of each other. If there are 3 or more then RAID 5 or 6 applies. RAID-5 means there is one guard disk, and RAID-6 means two guard disks.
  • These are just a guidelines. Customers are free to specify the RAID-6 configuration for the capacities above 6 TB if so desired.
  • For 11 disks or less a RAID-5 configuration.
  • For 12 disks or more, we recommend a RAID-6 configuration.

DNS and Active Directory Domain Account Requirements

DNS Requirement

All your servers must bear an official name on your Domain Name Server so that servers can be configured using the network name rather than raw IP addresses. This is more important when you are mirroing servers using the SQL, as the SQL Mirroring technology requires a Fully Qualified Domain Name for example, IMORGON1.PACS.STELSEHS.ORG as a the name. Most customers have some host naming convention. Please free free to use your own convention, however an underscore (_) is not permitted as an official Internet DNS name therefore do not use the underscore. The DNS standard does permit a use of a dash (-).

Active Directory Requirement

Your Imorgon Server computers must be joined to your Windows Active Directory (AD) domain in order for the SQL Server Mirroring to work. There are also suggested accounts tied to your domain. Your domain can be sub-domained for the purpose of providing security for Imorgon servers. AD is sometimes called LDAP by some IT administrators, however in our situation the full standard Active Directory support must be provided by the LDAP system of your choice.

Imorgon does not require domain user accounts for technical support purposes, but it is also recommended.

 Account Type Example Name Required? What It Does/ Business Justification
ComputerSTELSEHS\IMORGON1 YesEach Imorgon server computer must be joined to your domain so that it can permit the domain authentication.
Imorgon Service AccountSTELSEHS\ImorgonService YesUsed as a service account to run various Imorgon Services.
  • Must have local administrative privilege on all Imorgon servers including SQL, Test or Witness servers. Do not need domain wide admin privilege.
  • This will also be used for SQL service.
  • Password should not expire on this account since doing so will make the services to come to halt upon the expiration date (Unless other means for preventing such event can be implemented.)

Imorgon SQL AccountSTELSEHS\ImorgonSQLService OptionalSee above description for the "Imorgon Service Account"
Support Admin Account   STELSEHS\ImorgonAdmin        OptionalImorgon will usually have the imorgonadmin account pre-created on each Imorgon supported server however, if this is not permitted per you security policy, we recommend you create ImorgonAdmin acount with the full admin access permitted only on Imorgon hosting systems (i.e., SQL, Witness). You may require password expiration on this account.
Backup Share Access    STELSEHS\ImorgonBackup     May be.This type of account may be required if Imorgon is copying SQL backup files to another share on your network and if the service account does not have an access.

(C) Imorgon Medical, LLC. 2013. For the sole use by Imorgon customers. Reviewed 9 August 2013