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
