Login or Register to Ask a Question and Join Our Community


AIX

Difference between lpar and lun

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Operating Systems AIX Difference between lpar and lun
# 1  
Old 11-22-2013
Difference between lpar and lun
Hello,

What's the difference between lpar and a lun?


Best regards,
Vishal
# 2  
Old 11-22-2013
You'd get a shorter answer asking "what does an LPAR and a LUN have in common?"


You could easily answer this question by searching the internet.

http://en.wikipedia.org/wiki/LPAR
http://en.wikipedia.org/wiki/Logical_Unit_Number
This User Gave Thanks to Scott For This Post:
Vishal_dba
# 3  
Old 11-22-2013
To answer it in simple way

An LPAR (Logical Partition) is a virtual server.

A LUN (Logical Unit Number) is a disk (it can be carved out of many physical disks). The term is use by Storage Admins, but when it is mapped to a particular LPAR, the System Admins, DBA and Application team call it a disk, we also call disk a LUN.
This User Gave Thanks to ibmtech For This Post:
Vishal_dba
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk to calculate difference of split and sum the difference

In the awk I am trying to subtract the difference $3-$2 of each matching $4 before the first _ (underscore) and print that value in $13. I think the awk will do that, but added comments. What I am not sure off is how to add a line or lines that will add sum each matching $13 value and put it in... (2 Replies)
Discussion started by: cmccabe
2 Replies

2. AIX

How to differentiate between a standalone LPAR and a VIOC (which again is a lpar)?

There can be configurations in IBM Server wherein a standalone partition is created on some supported IBM Server Or A VIOS - VIOC LPARs created. Now in both cases they are lpars. But if I want to differentiate b/w a standalone LPAR vs an VIOC LPAR how can I do..? On a... (2 Replies)
Discussion started by: Manish00712
2 Replies

3. AIX

Lpar migration

We have a 2 node oracle rac cluster one node is in frame 1 and other is in frame 2 Now,because of some hardware failure(processor card and cable) in frame 1 we will failover database services from lpar in frame 1 to lpar(oracle rac cluster node2) in frame2 and the entire replacement of hardware... (9 Replies)
Discussion started by: admin_db
9 Replies

4. Programming

what is the main difference between difference between using nonatomic lseek and O_APPEND

I think both write at the end of the file ...... but is there a sharp difference between those 2 instruction ..... thank you this is my 3rd question today forgive me :D (1 Reply)
Discussion started by: fwrlfo
1 Replies

5. AIX

Sharing lun between 2 LPAR

Hi, I would like to know how to share lun in between 2 lpars. I have run tbe below command on vio server. /usr/sbin/chdev -l hdisk1 -a reserve_policy=no_reserve after above command I am able to assign lun on one Lpar. but it is not visible to other lpar. even after this I have run... (3 Replies)
Discussion started by: manoj.solaris
3 Replies

6. AIX

What's the difference between VIOS and LPAR?

Hi All, Besides the licenses on VIO and LPAR. What's the main difference with the two? I have installed VIO, my manager told me so, because it's like a free hypervisor but I never installed LPAR before. How do you install it? And if you can give more info on the two, that would be great. ... (5 Replies)
Discussion started by: itik
5 Replies

7. AIX

LPAR freezes after switching of storage (lpar is mirrored)

Hi all, I have the following configuration 2 ds3524 storage disk systems located over 2 locations 2 P720 server located over 2 locations DS3524 are connected to san switch. Each vio server has 1 fc adapter attached to a san switch. per p720 server 2 virtual io servers. Vio 1 has 1 lun... (2 Replies)
Discussion started by: markiemark
2 Replies

8. AIX

LPAR

I am planning for System P with 2 number of 2-core processor (4 core in total). Can I make 3 LPARS with this processor configuration without the support of micropartitioning, that means with simple LPAR only. (3 Replies)
Discussion started by: pchangba
3 Replies

9. Solaris

I have LUN ID, how to find disk relate to that LUN ID?

I have a list of LUN ID, my task is to find if disk has been added or not. How do I do that? I have been searching the forum and not able to find answer. thanks (4 Replies)
Discussion started by: uuontario
4 Replies

10. AIX

Problem mapping LUN disk from VIOS to the LPAR

Hello guys, It would be so nice of you if someone can provide me with these informations. 1) My SAN group assigned 51G of LUN space to the VIO server.I ran cfgdev to discover the newly added LUN. Unfortunately most of the disks that are in VIO server is 51G. How would I know which is the newly... (3 Replies)
Discussion started by: solaix14
3 Replies
Login or Register to Ask a Question