Login or Register to Ask a Question and Join Our Community


Red Hat

VMDisk error: Write Protect is off

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Operating Systems Linux Red Hat VMDisk error: Write Protect is off
# 1  
Old 02-02-2012
VMDisk error: Write Protect is off
Hi Everyone,

I noticed this error message, on the console. I added a new drive recently. not sure to be considered is a serious warning message or not.

Code:
SCSI device sdc: 27262976 512-byte hdwr sectors 91
sdc: Write Proetect is off
sdc: cache data unavailable
sdc: assuming drive cache: write through
end_request: I/O error, dev fd0, sector 0
end_request: I/O error, dev fd0, sector 0

and similar messages I have noticed on another Virtual machine.
Code:
Jan 30 14:37:07 HOSTNAME1 kernel: SCSI device sdb: 62914560 512-byte hdwr sectors (32212 MB)
Jan 30 14:37:07 HOSTNAME1 kernel: sdb: Write Protect is off
Jan 30 14:37:07 HOSTNAME1 kernel: sdb: cache data unavailable
Jan 30 14:37:07 HOSTNAME1 kernel: sdb: assuming drive cache: write through
Jan 30 14:37:07 HOSTNAME1 kernel:  sdb: sdb1
Jan 30 14:37:07 HOSTNAME1 kernel: SCSI device sdb: 62914560 512-byte hdwr sectors (32212 MB)
Jan 30 14:37:07 HOSTNAME1 kernel: sdb: Write Protect is off
Jan 30 14:37:07 HOSTNAME1 kernel: sdb: cache data unavailable
Jan 30 14:37:07 HOSTNAME1 kernel: sdb: assuming drive cache: write through
Jan 30 14:37:07 HOSTNAME1 kernel:  sdb: sdb1
Jan 30 14:45:30 HOSTNAME1 kernel: kjournald starting.  Commit interval 5 seconds
Jan 30 14:45:30 HOSTNAME1 kernel: EXT3 FS on dm-2, internal journal
Jan 30 14:45:30 HOSTNAME1 kernel: EXT3-fs: mounted filesystem with ordered data mode.
Jan 30 15:35:03 HOSTNAME1 yum: Updated: glibc-common-2.5-65.el5_7.1.x86_64

Thanks,
# 2  
Old 02-02-2012
I don't see anything noteworthy or worrisome in those messages. The kernel prints lots of informative things which people don't usually care about on the off-chance that, if you do, you'll have them.

'write protect' in this context is a hard disk feature; you can set some drives read-only at the hardware level. So even if you move it to a different computer or boot from a livecd or something, it's still not writable. You're not using this feature, and probably don't want to. It might not even make sense in a virtual machine context, but Linux still uses the complete driver and shows the information. It doesn't actually say it's an error or even a warning, it's just informational. So, ignore it.

The fd0 error messages on the other hand would be important, if they were happening to anything you cared about. I think that's your floppy drive.
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. Cybersecurity

How to protect system from cloning?

Hello there, I would like to protect a Linux system from cloning, I don't mind if the cloned hard drive works in the same computer, but I need to avoid it to work in other one, even if it uses exactly same mainboard model and rest of computer parts. I want the cloned system to get frozen or... (4 Replies)
Discussion started by: Installimat
4 Replies

2. UNIX for Advanced & Expert Users

protect process

how to protect my process from others to kill?? Double post, continued here, thread closed (0 Replies)
Discussion started by: samrintu
0 Replies

3. IP Networking

read/write,write/write lock with smbclient fails

Hi, We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the... (1 Reply)
Discussion started by: swatidas11
1 Replies

4. Solaris

fssnap error :snapshot error: File system could not be write locked

Hi Guys. This is part of my filesystem structure : Filesystem size used avail capacity Mounted on /dev/md/dsk/d0 47G 5.2G 42G 12% / /devices 0K 0K 0K 0% /devices ctfs 0K 0K 0K 0% ... (2 Replies)
Discussion started by: aggadtech08
2 Replies

5. Cybersecurity

on how to protect your website against hackers

Hi! Looking for some feed back on this tutorial... Thank you for checking out this thread. I'm working on some killer videos right now that will explain in detail how you can protect your website against hackers. The first part of the video series is live right now and it covers Cross-Site... (2 Replies)
Discussion started by: Arne1983
2 Replies

6. UNIX for Dummies Questions & Answers

Protect Account UID = 0

Hello, Can someone give me some recommendations on how to protect this account? I understand that this account is an "operator" account and has root access. Thanks in advance (5 Replies)
Discussion started by: susie2345
5 Replies

7. UNIX for Advanced & Expert Users

Protect from rm /

We recently had an accidental delete from /. I hold the root password but others are allowed to sudo over to root to perform admin tasks. The only way I want to permit deletion from / is by physically being root (su -). I'd like to add a line to the sudoers file which would permit all commands... (1 Reply)
Discussion started by: scottsl
1 Replies

8. Shell Programming and Scripting

tar with password protect

Hello All, i work with backup, The below script runs and tar the user specified dir and put it in a backup machine. can any one help me to modify this in such a was that the tar file generated can be given a users specific password so that it can have high security. KINDLY LET ME... (2 Replies)
Discussion started by: pradeepmacha
2 Replies

9. UNIX for Dummies Questions & Answers

protect dtterm

we have an hp-ux and a user requested me if i can password protect the dtterm. i know that this is possible but can you give me some hints in making this happen? thanks :cool: (2 Replies)
Discussion started by: inquirer
2 Replies
Login or Register to Ask a Question