lvm crashes my machine

[Azieh Ndangoh]

Hi there,

I have created a logical volume striped over 8 17G disks, with a stripe size of 64K. The the device is mounted, and everything looks fine (i.e. "df -k" shows ca. 136 GB, for the logical volume size). I can write small data on the device, but when I try to ftp a 5G file on this volume, the system crashes, and I have to reboot. what have I done wrong ?!?

help will be appreciated.

inno

[Sridhar Bhaskarla]

Hi,

1. Can you post tail -10 of your /var/adm/syslog/OLDsyslog.log?.
2. Is this server in a service guard cluster or on a disk array that being shared by other servers? If so, are you sure you did not use any of the disks that are being used by other server?
3. What is the patch level on this system?.
4. How do the command "vgdisplay -v" respond?. Are you seeing any errors?.
5. Are you seeing any errors while the system is booting?.

-Sri

[Jeff Schussele]

Hi,

What OS & JFS versions are you running?
Are your patches up to date?
Do you have largefiles enabled on this FS?

Rgds,
Jeff

[Martin Johnson]

Check /etc/rc.log for errors during the reboot.

HTH
Marty

[Azieh Ndangoh]

thanks to all for the prompt responses.
I am using redhat linux 7.1 with kernel version 2.4.18, but hoped to get the answer from this forum.

lvm = verison 1.1. Haven't applied any patch yet.

vgdisplay -v shows no errors,
>>>>>>>>>>>>>>>>>>
--- Volume group ---
VG Name vol1
VG Access read/write
VG Status available/resizable
VG # 0
MAX LV 256
Cur LV 1
Open LV 0
MAX LV Size 255.99 GB
Max PV 256
Cur PV 8
Act PV 8
VG Size 135.62 GB
PE Size 4 MB
Total PE 34720
Alloc PE / Size 34560 / 135 GB
Free PE / Size 160 / 640 MB
VG UUID RiY8ij-p9mP-Lxsj-qU74-UHX4-BsS6-j8oZI6

--- Logical volume ---
LV Name /dev/vol1/v1
VG Name vol1
LV Write Access read/write
LV Status available
LV # 1
# open 0
LV Size 135 GB
Current LE 34560
Allocated LE 34560
Stripes 8
Stripe size (KByte) 64
Allocation next free
Read ahead sectors 120
Block device 58:1


--- Physical volumes ---
PV Name (#) /dev/sda (1)
PV Status available / allocatable
Total PE / Free PE 4340 / 20

PV Name (#) /dev/sdb (2)
PV Status available / allocatable
Total PE / Free PE 4340 / 20

PV Name (#) /dev/sdc (3)
PV Status available / allocatable
Total PE / Free PE 4340 / 20

PV Name (#) /dev/sdd (4)
PV Status available / allocatable
Total PE / Free PE 4340 / 20

PV Name (#) /dev/sde (5)
PV Status available / allocatable
Total PE / Free PE 4340 / 20

PV Name (#) /dev/sdf (6)
PV Status available / allocatable
Total PE / Free PE 4340 / 20

PV Name (#) /dev/sdg (7)
PV Status available / allocatable
Total PE / Free PE 4340 / 20

PV Name (#) /dev/sdh (8)
PV Status available / allocatable
Total PE / Free PE 4340 / 20
>>>>>>>>>>>>>>>>>>



The man page for mkfs doesn't say how to enable largefile support during filesystem creation.

/etc/rc.log doesn't exist on my machine.

gotta try and enable largefile support though

thanks

inno

[Jeff Schussele]

Hi (again) inno,

Well, I'm not much of a penguin-head. Have my hands full with HP-UX.

In HP-UX, during FS creation you'd use the -o largefiles parameter. And if afterward you want to turn on largefiles you'd run
fsadm -o largefiles /dev/vg_name/lv_name

You can just run
fsadm /dev/vg_name/lv_name
to see what's turned on & off on the FS.

Rgds,
Jeff

[Sridhar Bhaskarla]

Ohhh!!!. you got me in there.. I cannot certainly answer on Linux.
Try posting this thread in the Linux forum here.

http://forums.itrc.hp.com/cm/FamilyHome/1,,118,00.html

Good luck.

-Sri

[Steven E. Protter]

HP says lvm has been ported to Linux.
Everything should work exactly the same. When creating filesystmems, you probably need to change the -F fstype part of the command line to include a valid Linux fs type.

LVM is great on HP-UX and may become the defact standard on Linux.