How did you setup that read-only /usr minidisk? did you link to a minidisk from VM or is it mounted on another guest as read-write? TIA -Cameron
-----Original Message----- From: Kern, Thomas [mailto:[EMAIL PROTECTED] Sent: Thursday, July 08, 2004 7:12 AM To: [EMAIL PROTECTED] Subject: Re: Linux under VM and Cloning I do not run a very complicated linux subsystem, but I do use a shared read-only /usr minidisk. This one disk is 2500 cylinders and is shared by 3 production machines. My simple savings is 5000 cylinders, but the basic calculation for savings would be (Nservers - 1) * 2500 = total cylinders saved For your environment that could be (20 - 1) * 2500 = 47500 cylinders = 4.7 3390-9 volumes /Thomas Kern /301-903-2211 > -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On > Behalf Of Seader, Cameron > Sent: Thursday, July 08, 2004 09:02 > To: [EMAIL PROTECTED] > Subject: Re: Linux under VM and Cloning > > > We are going with a lot of Linux Guests under VM. Close to 20 > per IFL and are wondering about the experiences with the > basevol/guestvol scenario. How many People accually use this > scenario? How much DASD does this really save you? Is it > worth the time and effort it takes to set this up? Could you > just setup Links to specific disks in VM for a Guest like if > you just wanted to share the binaries for say Oracle, or the > /usr directory or /home directory? Wouldn't this accomplish > the same thing? What would be the best way to go about this? > It seems that you would definately save on DASD, but how much > is the Question. Does SUSE support the basevol/guestvol out > of the box, or are their some packages that need installing > to make this work? How stable is it running under this > basevol/guestvol scenario? hopefully this is not too much to > ask question wise. Thanks in advance Hope you all can help. > > Cameron Seader > > > -----Original Message----- > From: Post, Mark K [mailto:[EMAIL PROTECTED] > Sent: Wednesday, July 07, 2004 4:47 PM > To: [EMAIL PROTECTED] > Subject: Re: Linux under VM and Cloning > > > This might be of some help. Some people on the mailing list have > implemented the "basevol/guestvol" scheme described here > http://publib-b.boulder.ibm.com/Redbooks.nsf/RedbookAbstracts/ > sg246824.html > > Also, Bill Scully has a presentation for a simplified version > of this at > http://linuxvm.org/present/misc/basevol.html > > There's also a chapter on cloning Linux images in this Redbook > http://publib-b.boulder.ibm.com/Redbooks.nsf/RedbookAbstracts/ > sg246299.html > > > Mark Post > > -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of > Griffin, John G > Sent: Wednesday, July 07, 2004 9:54 AM > To: [EMAIL PROTECTED] > Subject: Linux under VM and Cloning > > > We have just installed vm 4.4 and are running Linux > (SuSE 8). Our > 1st linux virtual machine (directory entry) runs as follows :- > > vadd description size volume > ------ ------------------------- -------------- ---------- > 191 standard minidisk 0050 cyls 440w02 > 301 linux root 3338 cyls lxpb01 > 302 linux boot 0029 cyls lxpb01 > 303 linux opt 2145 cyls lxpb01 > 304 linux usr 1500 cyls lxpb01 > 305 linux var 1500 cyls lxpb01 > 306 linux home 1500 cyls lxpb01 > > My questions is we want to have one volume that all > linuxes use > their software from (both kernel and third party software, as > on our linux > we have db2 and some candle products) and 1 volume that is > user specific so > that when we are required to clone another linux vm we can > just clone the > volume that the system software is on. As for directory entries we use > vmsecure so any automation we setup would have to take this > into account. > > Thanks and Regards > > John Griffin (z/OS Technical Support) > Office: +44 (0)207 500 6286 > Mobile: +44 (0)7764 823213 > Fax: +44 (0)207 500 0226 > e-mail: [EMAIL PROTECTED] > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access > instructions, send email > to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [EMAIL PROTECTED] with the message: INFO > LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > > > This transmission may contain information that is privileged, > confidential and/or exempt from disclosure under applicable > law. If you are not the intended recipient, you are hereby > notified that any disclosure, copying, distribution, or use > of the information contained herein (including any reliance > thereon) is STRICTLY PROHIBITED. If you received this > transmission in error, please immediately contact the sender > and destroy the material in its entirety, whether in > electronic or hard copy format. Thank you. A1. > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [EMAIL PROTECTED] with the message: INFO > LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 This transmission may contain information that is privileged, confidential and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. A1. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
