- Community Home
- >
- Storage
- >
- Entry Storage Systems
- >
- Disk Enclosures
- >
- Re: XP24000
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
ā03-27-2009 05:00 AM
ā03-27-2009 05:00 AM
Apart from considering the total no. ldevs for per host or size presented to the host per chip port, what is the maximum number of hosts that can be connectd to a chip port...
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
ā03-27-2009 05:15 AM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
ā03-27-2009 05:23 AM
ā03-27-2009 05:23 AM
Re: XP24000
If its 256 hosts per CHIP port, what is the maximum size of Luns that can be presented to each host in the Same Chip port and how m uch is supported.. Is there any specific Thumbrules or best practices in configuring available..
Let me know pls.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
ā03-27-2009 05:55 AM
ā03-27-2009 05:55 AM
Re: XP24000
it comes from the max number of LUNs=65280 and max number of CHIP ports=224
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
ā03-27-2009 07:20 AM
ā03-27-2009 07:20 AM
Re: XP24000
Before I go any further - IN THE REAL WORLD MOST PLACES ATTACH BETWEEN 10-20 HOSTS PER CHIP PORT. You should use this as a general rule of thumb unless you know you IO profiles very well.
Now for the comments you have received so far.......
IBaltay actually said that you can create a theoretical maximum of 256 "Host Groups". However, each Host Group can contain multiple Hosts.
The theoretical, but totally unrealistic, limit is - 2048 hosts per port (you would/could never do this).
The above is based on the following -
Each CHIP port on the XP2400 has a certain number of 2048 tags/queues. This basically means that each CHIP port can accept 2048 I/Os before overrunning the port.
So if you had 2048 hosts each host could only issue a single I/O simultaneously (2048 I/Os in total). If each of the 2048 hosts issued two I/Os at the same time the port would be overrun.
This is all theoretical as you would never go anywhere near that number of hosts per CHIP port.
In the real world, the number of hosts per CHIP port depends on a lot of things such as each hosts -
required throughput MB/s
required IOPs and I/O size
......
IN THE REAL WORLD MOST PLACES ATTACH BETWEEN 10-20 HOSTS PER CHIP PORT.
But this is just a guideline and it depends on the factors mentioned above such as MB/s and IOPs....... You should monitor the performance of each port to make sure that it is not becoming a bottleneck.
As for how many LUNs you can present on each CHIP port..... Again, this is theoretically 2048. You can map 2048 LUNs per CHIP port but because of the 2048 tag limit each LUN could only accept one I/O simultaneously without overrunning the port.
A general rule, if you dont know your host and LUN I/O profiles would be to keep the number of LUNs per CHIP port well below 2048.
Hope this helps.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
ā03-27-2009 07:31 AM
ā03-27-2009 07:31 AM
Re: XP24000
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
ā03-27-2009 07:53 AM
ā03-27-2009 07:53 AM
Re: XP24000
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManualā©=en&cc=us&docIndexId=64179&taskId=101&prodTypeId=12169&prodSeriesId=3418595
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
ā03-27-2009 08:14 AM
ā03-27-2009 08:14 AM
Re: XP24000
Ive seen configurations where a single very powerful host has several dedicated prtos (less than one host per port).
But Ive also seen configurations where there are over 20 hosts per port. But these hosts were not very powerful Windows servers....
If you have a high performance host then dont put it on a port with lots of other hosts.
The trick is to monitor your ports and know the performance requirements of your connected hosts.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
ā03-29-2009 11:47 AM
ā03-29-2009 11:47 AM