I plugged both power cables in both power supply. When I unplugged each power cable one by one, the SPARC T4-1 machine keep running. However, show faulty command shows below message. (I have also attached the picture of both power supply)
Hello
We have a power supply in an x4100 (x86) and it seems to be faulty but it is still working!?! (this box only has one PSU). We are getting Orange flashing warning light on the front of the box and the LED labelled “rear PSu” is solid orange ...We don't seem to have had any syslog error... (8 Replies)
Hi Experts,
I have configured A D40 Array. There is an faulty disk which is not part of an raid volume but shows fault in the diagnostics.
pdisk15 U0.1-P1-I1/Q1-W40AA83CC2400D
SSA160 Physical Disk Drive ( MB)
Is there a way to stop this... (2 Replies)
Hi All,
I replace a sub-mirror of a mirrored volume by using below command:
#metadetach d10(mirror) d11(striped)
#metattach d10 d13(other striped)
With above process I successfully replaced a faulty volume. I want to knoow if the process I followed is right. Or if not, what... (5 Replies)
Hi everyone,
I wanted to ask a question about fmadm and explorer outputs.
Recently found out that an error shows up in fmadm saying "mb is faulty but still in service" so we took an explorer send to Oracle Support. Error led wasn't on but we didn't want to risk the probability.
They came up... (1 Reply)
Hi,
Recently i came across a disk that seems to be faulty and need help. I have gathered some information by running below commands and any help on how to solve this will be great.
# uname –a
SunOS XYZ 5.7 Generic_106541-16 sun4u sparc SUNW,Ultra-4
#df -k
Filesystem kbytes used... (3 Replies)
Hi,
Have mirrored the primary disk to 3 .
Server and OS:
# uname -a
HP-UX pdwp1s B.11.11 U 9000/800 118434630 unlimited-user license
# model
9000/800/L3000-7x
# strings /etc/lvmtab
/dev/vg00
+F@<
/dev/dsk/c1t2d0
/dev/dsk/c2t2d0
/dev/dsk/c2t0d0
But now I have only 1 disk... (5 Replies)
Hello,
I'm new to this forum and as you will see from my question I'm new to UNIX as well.
One of our costumers has HP rx4640 running on UNIX with two 300GB hot-swappable disks that are mirrored. They reported to us that one of the disks is faulty and they want us to take care of it. Below is... (16 Replies)
Hi,
I'm trying to generate an alert related to Power Supply Failure.
As its difficult to generate such an event, Is it possible to set the status of a Power Supply Unit as "Faulty"
Any ideas are welcome and highly appreciated
-Thanks (3 Replies)
Hello,
Following parts need to be replaced in a frame as suggested by IBM
1. Flexible Cable
2. Service Processor Card
Would these faulty parts impact all lpars which are there in this frame?
Best regards,
Vishal (5 Replies)
Discussion started by: admin_db
5 Replies
LEARN ABOUT CENTOS
freeze_super
FREEZE_SUPER(9) The Linux VFS FREEZE_SUPER(9)NAME
freeze_super - lock the filesystem and force it into a consistent state
SYNOPSIS
int freeze_super(struct super_block * sb);
ARGUMENTS
sb
the super to lock
DESCRIPTION
Syncs the super to make sure the filesystem is consistent and calls the fs's freeze_fs. Subsequent calls to this without first thawing the
fs will return -EBUSY.
During this function, sb->s_writers.frozen goes through these values:
SB_UNFROZEN
File system is normal, all writes progress as usual.
SB_FREEZE_WRITE
The file system is in the process of being frozen. New writes should be blocked, though page faults are still allowed. We wait for all
writes to complete and then proceed to the next stage.
SB_FREEZE_PAGEFAULT
Freezing continues. Now also page faults are blocked but internal fs threads can still modify the filesystem (although they should not
dirty new pages or inodes), writeback can run etc. After waiting for all running page faults we sync the filesystem which will clean all
dirty pages and inodes (no new dirty pages or inodes can be created when sync is running).
SB_FREEZE_FS
The file system is frozen. Now all internal sources of fs modification are blocked (e.g. XFS preallocation truncation on inode reclaim).
This is usually implemented by blocking new transactions for filesystems that have them and need this additional guard. After all internal
writers are finished we call ->freeze_fs to finish filesystem freezing. Then we transition to SB_FREEZE_COMPLETE state. This state is
mostly auxiliary for filesystems to verify they do not modify frozen fs.
sb->s_writers.frozen is protected by sb->s_umount.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 FREEZE_SUPER(9)