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Full Discussion: RAID in Hpux
Operating Systems HP-UX RAID in Hpux Post 302841681 by rveri on Wednesday 7th of August 2013 07:05:53 PM
Old 08-07-2013
smazshah,

- What is the model of your server. and OS version.
$ model ; uname -a

-How you have connected the disk, are they connected in the front bay or are this SAN disks.

In first output it shows CLAIMED, c10t5d0 c10t4d0 that is good, however if the disks are not in CLAIMED state you can not use them for the task.
- After you have presented the disks, make sure you have executed :
# ioscan ; ioscan -fnC disk
# insf -e -C disk


- Then check their condition:
# ioscan -fnH 0/4/1/0.0.0.4.0 ; ioscan -fnH 0/4/1/0.0.0.5.0
# diskinfo /dev/rdsk/c10t5d0 ; diskinfo /dev/rdsk/c10t4d0


- Once above looks good , you can go ahead with RAID-1 mirroring.
This is software mirror, you should have "MirrorDisk/UX " bundle installed with license.
if you have MCOE os , then it ll be bundled with the OS.
To check what type of OE you have you can use # swlist -l bundle | grep -i HPUX11


- If MirrorDisk/UX is ok, you can go ahead and do the mirroring of the disk RAID1.

Few steps outlined for having RAID1 filesystems on the two disk:
1. pvcreate both the disks. # pvcreate -f /dev/rdsk/c10t4d0
2. Create a volume group say vg01 , add the 2nd disk also. with vgcreate , vgextend
3. Create a Filesystem, that you want redundant. (RAID 1 ). with lvcreate and newfs
4. Proceed with mirror: Use lvextend -m 1 <lv_path> <2nd_disk>
5. check with lvdisplay -v <lv_name> , you will see 2 PE. in the LV. That means it is mirrored.

6. If one disk fails, your filesystem & its data, that was created per step 3, will be intact.
 

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Smokeping_probes_base(3)					     SmokePing						  Smokeping_probes_base(3)

NAME
Smokeping::probes::base - Base Class for implementing SmokePing Probes OVERVIEW
For the time being, please use the Smokeping::probes::FPing for inspiration when implementing your own probes. SYNOPSIS
*** Probes *** +base offset = 50% pings = 20 step = 300 # [...] *** Targets *** probe = base # if this should be the default probe # [...] + mytarget # probe = base # if the default probe is something else host = my.host VARIABLES
Supported probe-specific variables: offset If you run many probes concurrently you may want to prevent them from hitting your network all at the same time. Using the probe- specific offset parameter you can change the point in time when each probe will be run. Offset is specified in % of total interval, or alternatively as 'random', and the offset from the 'General' section is used if nothing is specified here. Note that this does NOT influence the rrds itself, it is just a matter of when data acqusition is initiated. (This variable is only applicable if the variable 'concurrentprobes' is set in the 'General' section.) Example value: 50% pings How many pings should be sent to each target, if different from the global value specified in the Database section. Note that the number of pings in the RRD files is fixed when they are originally generated, and if you change this parameter afterwards, you'll have to delete the old RRD files or somehow convert them. Example value: 20 step Duration of the base interval that this probe should use, if different from the one specified in the 'Database' section. Note that the step in the RRD files is fixed when they are originally generated, and if you change the step parameter afterwards, you'll have to delete the old RRD files or somehow convert them. (This variable is only applicable if the variable 'concurrentprobes' is set in the 'General' section.) Example value: 300 AUTHORS
Tobias Oetiker <tobi@oetiker.ch> 2.6.8 2013-03-17 Smokeping_probes_base(3)
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