"R.S." <[email protected]> wrote in message news:<[email protected]>... > W dniu 2012-02-19 17:23, Edward Jaffe pisze: > > On 2/19/2012 4:40 AM, R.S. wrote: > >> W dniu 2012-02-19 08:30, Edward Jaffe pisze: > >>> On 2/18/2012 4:45 PM, Paul Gilmartin wrote: > >>>> Remember that if z/OS didn't impose a factitious limit on > >>>> volume size, there'd be little need for multivolume data sets. > >>> > >>> In that case, widespread adoption of 1TB volumes on z/OS should > >>> significantly decrease the number of multivolume data sets in use... > >>> > >> > >> 1TB ??? Why so huge? It's... it's... it's almost as much as single HDD > >> in my PC! <vbg> > > > > What's especially cool is that mainframe volumes can by dynamically > > configured to be any size between Mod1 and 1TB. If you ever run out of > > space on a volume, just turn the "magic screwdriver" on the remote DASD > > HMC (SSPC) to make the volume larger and keep on going. The new size is > > immediately seen by z/OS. > > Well, the same feature was available 12+ years ago on "windows" dasd > arrays. What is "warm" (not cool <vbg>) is that mainframe volumes CANNOT > BE always dynamically enlarged. It is available on some controllers > under some circumstances (set up). > > What is cool is that SMS storage group. Usually users do not see the > volumes, they see dasd space. In case of shortage you can simply add > some volumes to the group. You can even buy new box and simply add it to > the group. And that's really cool IMHO. > >
And SMS's granularity is also cool. If you add your 1TB disk to a storage group, you cannot use this space in anther SG anymore. If you have 1TB of 3390-54's, you can give to and take from SMS storage groups any required amounts at any time. Kees. > -- > Radoslaw Skorupka > Lodz, Poland > > ******************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ******************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
