Sponsored Content
Operating Systems Linux Ubuntu Scan and create file systems in new LUNs Post 302956378 by Peasant on Tuesday 29th of September 2015 11:41:32 AM
Old 09-29-2015
Check out the output of
Code:
dmsetup info

Locate the disk with 252:2 major/minor number.
Check if that disk is local disk and blacklist that disk so multipath is not active.

Refer to :
https://help.ubuntu.com/lts/servergu...multipath.html
Section : Ignoring Local Disks When Generating Multipath Devices

Restart multipath daemon.

Post output of :
Code:
multipath -v3
ls -lrt /dev/mapper/*

Rescan the fabric. You have some cards inside from manufacturer X.
Check out the documentation regarding scanning from Linux host, i cannot say for sure.
Most makers provide some sort of utilities to rescan (scripts etc.).. you will have to figure that one out Smilie

---------- Post updated at 17:41 ---------- Previous update was at 17:37 ----------

Sorry i cannot edit posts (issue with browser Smilie ), it will just double post.

Read the documentation on provided links.
You will need to configure the multipath.conf, instructions are there (Configuring storage devices).

Hope the helps
Regards
Peasant.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Creating create mirrored disk files systems using mkfs command

What is the correct mkfs syntax to create mirrored disk files systems? I need to make the file system 20gb. For example: machine# mkfs -F ufs /dev/md/dsk/d40 size not specified ufs usage: mkfs special size(sectors) \ -m : dump fs cmd line used to make this partition -V : print this... (4 Replies)
Discussion started by: GLJ@USC
4 Replies

2. Shell Programming and Scripting

File Scan

Hi everyone , i m working on Sun solaris and i have a file "smsapp.cur" which has information like this paragraph given below , there are millions of such paragraphs From:923212802736 To:923222326807 logMessage: 07-04-08 17:34:29 Getting message topup from code page default in language English... (2 Replies)
Discussion started by: Dastard
2 Replies

3. Solaris

how to create luns in A1000

hi friends how we can create luns in A1OOO storage ..plzhelp its very urgent when ever i am connect to A1000 raid controller through laptop with console cable with the help of hyperterminal..i isued serial port parameters which i mentioned below.. Set serial port parameters to: �... (1 Reply)
Discussion started by: tv.praveenkumar
1 Replies

4. Shell Programming and Scripting

Log File Scan

I need to read the last line of a log file and save it, sleep for X minutes and read the last line again. If the line is the same, exit 1, otherwise sleep for X minutes until the last line contains 'Status: Process completed'. Can anyone offer advice here? Thanks. (2 Replies)
Discussion started by: mode09
2 Replies

5. Red Hat

Scan For new LUNS

In Solaris the administrator has to update /kernel/drv/sd.conf file to tell the sd driver to scan for a broader range of scsi devices. Can someone please tell me what file needs to be update in Redhat Linux 5 for the same. Second part of the question is WWN for HBA's can be found (atleast in my... (1 Reply)
Discussion started by: Tirmazi
1 Replies

6. Shell Programming and Scripting

Help with create multiple directories under diff file systems

Hi, Need help ...I want to create multiple directories in different /file systems using for loop..eg.../ORCL_data01/oradata/orcl/ctl. ../ORCL_data01/oradata/orcl/data. ../ORCL_data01/oradata/orcl/redo. Script :- ========= for dir in `ls -d... (8 Replies)
Discussion started by: Linux6.5
8 Replies

7. Red Hat

Scan for new LUN and create a new file system

Hi Please I dont have a lot of redhat skills, but I need some help on creating a file system. I need to rescan for this new LUN, so I try to check existing LUNs: fdisk -l Disk /dev/sda: 299.4 GB, 299439751168 bytes 255 heads, 63 sectors/track, 36404 cylinders Units = cylinders of... (8 Replies)
Discussion started by: fretagi
8 Replies

8. Solaris

How to scan for LUNs in SunOS sun4v sparc?

Hi everyone, We have the below sun Operating system, Now our storage team have Create a 500GB LUN for this server, How can i scan and mount the shared LUN ? Could anyone help me to resolve this issue. SunOS my_hostname.com 5.10 Generic_150400-09 sun4v sparc sun4v Update: -------- I... (9 Replies)
Discussion started by: babinlonston
9 Replies

9. Shell Programming and Scripting

Scan directories and create a list of files

Gents, Please can you help. I want to create a list which contends the complete patch of the location of some directories with the size of each file. need to select only .txt file In this case I am try to find the subdirectories tp1 and tp2 and create the output list. jd175-1 tp1... (3 Replies)
Discussion started by: jiam912
3 Replies

10. Shell Programming and Scripting

Create automated scan of specific directory using bash

I am trying to use bash to automate the scan of a specific directory using clamav. Having this in place is a network requirement. The below is an attempt to: 1. count the extensions (.txt, .jpeg) in a directory and write them to a virus-scan.log (section in bold) 2. scan each folder in the... (6 Replies)
Discussion started by: cmccabe
6 Replies
bup-margin(1)						      General Commands Manual						     bup-margin(1)

NAME
bup-margin - figure out your deduplication safety margin SYNOPSIS
bup margin [options...] DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids. For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by its first 46 bits. The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits, that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits with far fewer objects. If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if you're getting dangerously close to 160 bits. OPTIONS
--predict Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer from the guess. This is potentially useful for tuning an interpolation search algorithm. --ignore-midx don't use .midx files, use only .idx files. This is only really useful when used with --predict. EXAMPLE
$ bup margin Reading indexes: 100.00% (1612581/1612581), done. 40 40 matching prefix bits 1.94 bits per doubling 120 bits (61.86 doublings) remaining 4.19338e+18 times larger is possible Everyone on earth could have 625878182 data sets like yours, all in one repository, and we would expect 1 object collision. $ bup margin --predict PackIdxList: using 1 index. Reading indexes: 100.00% (1612581/1612581), done. 915 of 1612581 (0.057%) SEE ALSO
bup-midx(1), bup-save(1) BUP
Part of the bup(1) suite. AUTHORS
Avery Pennarun <apenwarr@gmail.com>. Bup unknown- bup-margin(1)
All times are GMT -4. The time now is 07:10 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy