Easy steps to a system upgrade?
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From: Monty on 27 Jun 2008 10:01 I've recently been informed that our shop is about to receive thirteen new Sun Ultra 45s preloaded with Solaris 10...this just days after I've upgraded our Sun Blade 2500s (Silver) to Solaris 10. I'm wondering if it's possible or what the considerations might be for removing the drives from the 2500s and copying the drive layout to the new drives, such as with a dd or something similar. The old drives are 146 GB Fujitsus, and the new drives are 250 GB (manufacturer unkown). Has anyone attempted anything like this? Thanks
From: Richard B. Gilbert on 27 Jun 2008 11:00 Monty wrote: > I've recently been informed that our shop is about to receive thirteen > new Sun Ultra 45s preloaded with Solaris 10...this just days after > I've upgraded our Sun Blade 2500s (Silver) to Solaris 10. > > I'm wondering if it's possible or what the considerations might be for > removing the drives from the 2500s and copying the drive layout to the > new drives, such as with a dd or something similar. The old drives > are 146 GB Fujitsus, and the new drives are 250 GB (manufacturer > unkown). > > Has anyone attempted anything like this? > > Thanks What, exactly, are you trying to accomplish? Solaris is already installed. Presumably it's a clean install of the latest version of S10. It would seem to me that you need to install your applications on the new machine and to copy your data to the new machine. Now is a really good time to think about how you want your drive laid out! Do you have enough free space in / to install the next two or three years worth of patches? Do you have enough space in /var? If you need to change the size of any of the slices on the disk, now is the time to do it and get it right. Backing up everything, repartitioning, and restoring, because you have run out of space somewhere, can be a real PITA. When you get that all done, then you can install the old drive and copy what you need from it. Rather than just copying from the old drive, you might want to do clean installs of your applications and then apply any patches to the applications. IF you do it that way, document exactly what you installed! It's a lot easier to write it down now than to reverse engineer it a couple of years from now. Whatever you do, you'll probably have to live with it for the next two or three years! Think!!!!
From: dfn on 27 Jun 2008 11:12 Monty <dale.schmitz(a)offutt.af.mil> writes: > I'm wondering if it's possible or what the considerations might be for > removing the drives from the 2500s and copying the drive layout to the > new drives, such as with a dd or something similar. The old drives > are 146 GB Fujitsus, and the new drives are 250 GB (manufacturer > unkown). Transfering an install from one hardware type to another may or maynot work. However, it would be a simple 4 step process if you wanted to try. Use format to layout the new drive, newfs the new filesystems, use ufsdump/ufsrestore (read ufsrestore man page for an example) to copy the filesystems due to differing partition sizes and then install the boot block onto the new root filesystem with installboot (read installboot man page). Having said that if it was me I would want fresh installs on new machines. I would setup a jumpstart server or create bootable flash archives to automate the process of new workstation installs. -Dave
From: Monty on 27 Jun 2008 11:47 Come to think of it, none of the applications are installed locally: they're all NFS mounted from the server. I guess then it comes down to copying a few files, such as nsswitch.conf and /etc/auto_direct (to name just a couple), tie the client to the NIS master and that might be all there is. Thanks, your suggestions made me realize the simplicity of it all :)
From: AGT on 27 Jun 2008 12:01
On Fri, 27 Jun 2008 11:00:24 -0400, Richard B. Gilbert wrote: > Monty wrote: >> I've recently been informed that our shop is about to receive thirteen >> new Sun Ultra 45s preloaded with Solaris 10...this just days after >> I've upgraded our Sun Blade 2500s (Silver) to Solaris 10. Is that a complaint? I'd be rather happy about it Shiny new stuff - good >> I'm wondering if it's possible or what the considerations might be for >> removing the drives from the 2500s and copying the drive layout to the >> new drives, such as with a dd or something similar. The old drives >> are 146 GB Fujitsus, and the new drives are 250 GB (manufacturer >> unkown). No - one is SCSI Ultra-320 the other is SAS or SATA ... Sounds like SATA. You (OP) HAVE heard of sunsolve?? >> Has anyone attempted anything like this? Doubtful. They have no doubt failed with a technique like that. > What, exactly, are you trying to accomplish? Dismissal from his current position? > Solaris is already installed. Presumably it's a clean install of the > latest version of S10. Actually the pre-installed offering from Sun usually has an insane layout. In this I can see where the OP would want to mimic the older installation layouts. But this is a rather classic sysadmin 101 problem. Easy to get wrong but somewhat trivial to get right : > man format, prtvtoc, and fmthard These tools will give the OP all the numbers needed to decide on how to layout the new machines. > It would seem to me that you need to install your applications on the > new machine and to copy your data to the new machine. With this many machines Id have a pca patch server and a jumpstart server Id chop up the disks so you could live upgrade the boxes later. |