odd entry in /etc/fstab


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers odd entry in /etc/fstab
# 1  
Old 01-07-2009
odd entry in /etc/fstab

I was making text file copies of some system utility output (e.g. ioscan) and happened to look at /etc/fstab and found this:
Code:
/dev/vg02/lvol1 /prodbkup       vxfs    ioerror=mwdisable,log,nodatainlog,dev=40
020001  0       0

my other entries look like this:
Code:
/dev/vg04/lvol1 /trainbkup vxfs log,nodatainlog 0 0

I have no idea why this filesystem is different. tje ioerror=mwdisable and the dev=40020001
What does it mean and does it make sense?

Last edited by Yogesh Sawant; 10-21-2010 at 07:11 AM.. Reason: added code tags
# 2  
Old 01-08-2009
See man mount_vxfs for a description of the ioerror= mount option.

The dev= option seems to be undocumented (at least on the systems I'm looking at). What operating system and version of Veritas Filesystem are you using?
# 3  
Old 01-08-2009
HP-UX B.11.23 U i64

no idea about the Veritas - if you tell me how to find out I will report back
# 4  
Old 01-08-2009
I don't know what dev option means, either, but in general, if you want to read up on Veritas File System (which is what you have), go here: Storage Foundation and High Availability 4.1

I have no clue how to check vxfs version on HPUX, on Solaris or Linux you would check the package/rpm info, whatever package mgmt is used on HPUX should give you the info.
# 5  
Old 01-08-2009
swlist VRTSvxfs will tell you what version you're using.

I think I know what's going on here. If you run the mount -p command to display the mounted filesystems in fstab format, you will probably see a dev= option for every device. I suspect another admin has simply copied and pasted those mount options into fstab at some point; but I imagine the dev= option is meaningless in there as it would be dynamically set to the device number of the device that is mounted.

In other words, don't put it in /etc/fstab.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to replace multiple "&nbsp;" entry with in <td> tag into single entry using sed?

I have the input file like this. Input file: 12.txt 1) There are one or more than one <tr> tags in same line. 2) Some tr tags may have one <td> or more tna one <td> tags within it. 3) Few <td> tags having "<td> &nbsp; </td>". Few having more than one "&nbsp;" entry in it. <tr> some td... (4 Replies)
Discussion started by: thomasraj87
4 Replies

2. Linux

/etc/fstab entries

Hi, Can anyone explain why we use defaults 0 0 in fstab and what does 0 inidicate 10.250.104.50:/home/u /home/u nfs defaults 0 0 Thanks in advance Muzaffar (3 Replies)
Discussion started by: muzaffar.k
3 Replies

3. How to Post in the The UNIX and Linux Forums

Help me, write a bash script to delete parent entry with all their child entry in LDAP UNIX server

Hi All, Please help me and guide me to write a bash/shell script on Linux box to delete parent entry with all their child entries. example: Parent is : ---------- dn: email=yogesh.kumar@wipro.com, o=wipro, o=in child is: ---------- dn: cn: yogesh kumar, email=yogesh.kumar@wipro.com,... (1 Reply)
Discussion started by: Chand
1 Replies

4. Red Hat

Rc.sysinit mounts root FS then why we have entry in fstab

Hello, In linux /etc/rc.d/rc.sysinit mounts root File System as RW during the booting phase. So why we have entry of it in /etc/fstab? Thanks, Nitin (1 Reply)
Discussion started by: Nitin Pradhan
1 Replies

5. Red Hat

Mount /etc/fstab

Can you please help me mount below filesystem in fstab ( I have rhel 5 ) as the line is long - it is not taking as single line How can break this in 2 line and act as one ....please help ... (4 Replies)
Discussion started by: saurabh84g
4 Replies

6. Ubuntu

fstab question

I have created a thumbdrive with a bootable version of Ubuntu 10.04 LTS, it uses Grub legacy. One of the issues I have is that everytime I boot a new system from the thumbdrive, it writes entries for the partitions in the fstab. Consequently, when I boot another system, the OS reads the fstab... (2 Replies)
Discussion started by: stumpyuk
2 Replies

7. UNIX for Dummies Questions & Answers

fstab

hi , i'm creating a shell script using fstab for my project of last year, i wonder you can help me to know what is the command allow me to get the list of unmounted partitions. thanks (4 Replies)
Discussion started by: Linux001
4 Replies

8. Red Hat

Using a variable in fstab

We have a load of servers which require cloning in VMWare, each of which have their own area on netapp for storage. I was trying to be a bit clever and use a variable within /etc/fstab so I dont need to edit it every time like so; netapp:/vol/vol_nfs_server/servers/`hostname | sed 's/\./ /g' |... (1 Reply)
Discussion started by: JayC89
1 Replies

9. UNIX for Dummies Questions & Answers

fstab question

Folks; Please be patient with this issue when you read it. I know it's a little tricky. I have a new share created on my SUSE 10 box. I'm trying to edit the /etc/fstab file or find a way to make this share needs no authentication. The reason for that is we're using an outside application to... (3 Replies)
Discussion started by: Katkota
3 Replies

10. Linux

/etc/fstab

I've created a new drive and i've added it to my fstab file but on startup it will not mount. here is how i put it into my fstab file, is that right? /dev/hdb2 /disk2a ext3 defaults 1 2 (6 Replies)
Discussion started by: byblyk
6 Replies
Login or Register to Ask a Question