We have a 10 system sysplex with shared filesystems and we use a REXX exec that we can run from TSO or ISHELL to change the mount attribute of the root when we need to add a new mountpoint. It uses the " 'unmount ' m.mnte_fsname mnt" command to change the mount attributes.
-----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Jousma, David Sent: Thursday, December 29, 2011 9:14 AM To: [email protected] Subject: Re: z/OS 1.13 - Can the root file system be shared as read/write? Chmount only works in a single system environment. WE share those filesystems READ only among several systems, and this would fail. _________________________________________________________________ Dave Jousma Assistant Vice President, Mainframe Services [email protected] 1830 East Paris, Grand Rapids, MI 49546 MD RSCB2H p 616.653.8429 f 616.653.2717 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of McKown, John Sent: Thursday, December 29, 2011 8:54 AM To: [email protected] Subject: Re: z/OS 1.13 - Can the root file system be shared as read/write? > -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[email protected]] On Behalf Of Jousma, David > Sent: Thursday, December 29, 2011 7:27 AM > To: [email protected] > Subject: Re: z/OS 1.13 - Can the root file system be shared as > read/write? > > Cant specifically answer your question. But in general, I > don't like mounting any of the z/OS product ZFS file systems > read/write because "junk" tends to collect in them whether by > accident or on purpose. We are not doing sysplex sharing, > but do mount them all READ only. > > _________________________________________________________________ > Dave Jousma That's my plan too. I mount all my "root" filesystems (SYSPLEX, VERSION, & SYSTEM) as READ, along with the "product" filesystems as well. If I really need to do an update, I use a UNIX shell and "cd" to the proper subdirectory. Then do a "chmount -w .". Update the filesystem (update a file or rmdir or mkdir, whatever). Then "chmount -r ." again. My .profile adds /usr/sbin to my PATH, which makes using chmount easier. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * [email protected] * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN This e-mail transmission contains information that is confidential and may be privileged. It is intended only for the addressee(s) named above. If you receive this e-mail in error, please do not read, copy or disseminate it in any manner. If you are not the intended recipient, any disclosure, copying, distribution or use of the contents of this information is prohibited. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please erase it from your computer system. Your assistance in correcting this error is appreciated. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN This e-mail may contain confidential or privileged information. If you think you have received this e-mail in error, please advise the sender by reply e-mail and then delete this e-mail immediately. Thank you. Aetna ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
