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тАО06-29-2001 01:54 PM
тАО06-29-2001 01:54 PM
Jamaica A3311A
Hello everyone,
I'm VERY new to HP-UX and have mainly worked in the security field.
I have a friend that has a HP 9000,
and is needing me to setup a Jamaica A3311A
for mirroring.
Could someone help me out here? I'm lost when it comes to hardware.
I'm VERY new to HP-UX and have mainly worked in the security field.
I have a friend that has a HP 9000,
and is needing me to setup a Jamaica A3311A
for mirroring.
Could someone help me out here? I'm lost when it comes to hardware.
3 REPLIES 3
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тАО06-29-2001 02:57 PM
тАО06-29-2001 02:57 PM
Re: Jamaica A3311A
There really isnt too much of a hardware difference in basic mirroring. What is needed however is a software product called MirrorDisk/UX installed on the system. There are a number of variables in setting up a mirrored volume so what is listed are just a few basic tips.
- Using SAM (a GUI interface to admin tasks) may be the easiest. Run sam and got to Disks and File Systems. Create a new volume and look for the mirror option (if the software is not installed then it wont be there).
- There is also command line of course. An example of setting up a mirror with a new volume:
lvcreate -L 200 -m 1 -n lvolm1 /dev/vg01
This creates a 200MB mirrored volume called lvolm1 on /dev/vg01.
If this is making no sense and you cant afford to experiment (on someone elses machine) then I suggest you go to docs.hp.com and search on mirrordisk for more detailed instructions (unless other folks can offer more assistance of course!!).
Good Luck.
- Using SAM (a GUI interface to admin tasks) may be the easiest. Run sam and got to Disks and File Systems. Create a new volume and look for the mirror option (if the software is not installed then it wont be there).
- There is also command line of course. An example of setting up a mirror with a new volume:
lvcreate -L 200 -m 1 -n lvolm1 /dev/vg01
This creates a 200MB mirrored volume called lvolm1 on /dev/vg01.
If this is making no sense and you cant afford to experiment (on someone elses machine) then I suggest you go to docs.hp.com and search on mirrordisk for more detailed instructions (unless other folks can offer more assistance of course!!).
Good Luck.
----------------
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тАО06-29-2001 11:28 PM
тАО06-29-2001 11:28 PM
Re: Jamaica A3311A
Connect A3311A to a existing HP-PB Fast/Wide scsi interface or HSC Fast/Wide scsi interface if fast/wide disk module (DF) is installed in the box.
For single/ended disk module (SE), use HP-PB single-ended adaptor.
Please be aware that HP-PB Fast/Wide scsi interface requires disc3 and scsi3 into kernel and HSC Fast Wide scsi interface, sdisk respectively.
If you look at the rear side of A3311A, you can notice that there is dip switch for every single disk location.
Use it in order to set unique scsi IDs to each disk modules.
After connecting A3311A to the system, do "ioscan -Cdisk -fn" to see if it's on the bus.
For software mirroring, An application, Mirror/UX is required and you have to pay for it.
After loading Mirror/UX in the system using swinstall, look at the line below.
c0t6d0 <- a disk in use and belong to vg01.
c1t6d0 <- a disk to be mirrored.
# pvcreate /dev/rdsk/c1t6d0
# vgextend /dev/vg01 /dev/dsk/c1t6d0
# lvcreate -m 1 -l /dev/vg01/lvolX
( m is an option for mirroring and see the man page for more information. )
# man lvcreate
# lvdisplay -v /dev/vg01/lvolX
( to verify that mirror is working. )
For single/ended disk module (SE), use HP-PB single-ended adaptor.
Please be aware that HP-PB Fast/Wide scsi interface requires disc3 and scsi3 into kernel and HSC Fast Wide scsi interface, sdisk respectively.
If you look at the rear side of A3311A, you can notice that there is dip switch for every single disk location.
Use it in order to set unique scsi IDs to each disk modules.
After connecting A3311A to the system, do "ioscan -Cdisk -fn" to see if it's on the bus.
For software mirroring, An application, Mirror/UX is required and you have to pay for it.
After loading Mirror/UX in the system using swinstall, look at the line below.
c0t6d0 <- a disk in use and belong to vg01.
c1t6d0 <- a disk to be mirrored.
# pvcreate /dev/rdsk/c1t6d0
# vgextend /dev/vg01 /dev/dsk/c1t6d0
# lvcreate -m 1 -l
( m is an option for mirroring and see the man page for more information. )
# man lvcreate
# lvdisplay -v /dev/vg01/lvolX
( to verify that mirror is working. )
Never say "no" first.
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тАО07-02-2001 05:28 AM
тАО07-02-2001 05:28 AM
Re: Jamaica A3311A
Hi William,
you need to check which disks ( D0 ) to mirror on which disks ( D1 ).
for that you have to fetch actuel disks ( D0 ) in which volume groups :
cd /dev
ls -ald vg*
vgdisplay -v vg* ? more
-> Gives which disks forming which volume group and which logical volumes forming which volume groups.
lvdisplay -v /dev/vg*/lv* ? more
-> Gives which logical volume on which disk.
Mirroring operation :
lvextend -m 1 -A n /dev/vg00/lvol1 /dev/dsk/c2t2d0
lvextend -m 1 -A n /dev/vg00/lvol2 /dev/dsk/c2t2d0
etc ...
We assume that lvol1,lvol2 are on disk /dev/dsk/c1t2d0.
Notice : Doing the mirroring on different controller is increasing data availability and doing load balancing while writing data to disk.
you need to check which disks ( D0 ) to mirror on which disks ( D1 ).
for that you have to fetch actuel disks ( D0 ) in which volume groups :
cd /dev
ls -ald vg*
vgdisplay -v vg* ? more
-> Gives which disks forming which volume group and which logical volumes forming which volume groups.
lvdisplay -v /dev/vg*/lv* ? more
-> Gives which logical volume on which disk.
Mirroring operation :
lvextend -m 1 -A n /dev/vg00/lvol1 /dev/dsk/c2t2d0
lvextend -m 1 -A n /dev/vg00/lvol2 /dev/dsk/c2t2d0
etc ...
We assume that lvol1,lvol2 are on disk /dev/dsk/c1t2d0.
Notice : Doing the mirroring on different controller is increasing data availability and doing load balancing while writing data to disk.
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