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creating Volume on DS-20

Sakui
Frequent Advisor

creating Volume on DS-20



I have a DS-20 Alpha Server with True 64 5.1b with three disk. I have installed the OS on the first Disk. I will like to create a volume with the remaining two disks. What is the command. Should I used Advfs or LSM.If possible i will like the two disk to be in raid 1 if possible.
4 REPLIES
Vladimir Fabecic
Honored Contributor

Re: creating Volume on DS-20

If you want some kind of RAID, you need LSM.
Anyway, you should use LSM if do not have hardware RAID controller (if this server is important).
In vino veritas, in VMS cluster
Sakui
Frequent Advisor

Re: creating Volume on DS-20



I have an internal RAID card with three disk . I need to create a volume with no RAID or Stripe.DO I still have to used Advfs or LSM?If Advfs or LSM do i need license or the basic Advfs or LSM will allow me.I only need to create a volume with two disk.Can u list the command
Venkatesh BL
Honored Contributor

Re: creating Volume on DS-20

AdvFS and LSM are at two different levels in the OS architecture. AdvFS is a file system whereas, LSM is Logical Storage.

Remember, AdvFS File System can be created using a physical disk partition or a Logical (LSM) volume.

In your case, since you just want two disks to be in a domain, you could simply use AdvFS commands as follows:

1) mkfdmn
ex: mkfdmn dsk7c my_domain

2) addvol
ex: addvol my_domain dsk8c
[Note that 'addvol' requires additional AdvFS license]

Vladimir Fabecic
Honored Contributor

Re: creating Volume on DS-20

I was thinking that using Advfs means using Advfs utilities (addvol).
Do not forget that you also need separate license for advfs utilities (as you also need for LSM).
Sakui
you said you have internal RAID card. The best solution would be that you buy one additional disk and make two mirror sets.
For creating and using (basic) advfs file system you do not need additional license. It is nice to have advfs utilities, but can live without that.
Commands? First we must know what licenses you have. Please send output of:
# lmf list
As I said: do buy one more disk and let the hardware take care of disk redundancy. In that case you do not need LSM. And you will NOT loose data in case of one disk failure (hardware RAID will take care of that)
In vino veritas, in VMS cluster