Re: oncheck -me
Zev Berezin <zevb@bhphoto.com> asked:
>Is oncheck -me supported in IDS 10?
No; it is in IDS 7.3x only.
> Jonathan Leffler <jleffler@earthlink.net> wrote:
>> Simmons, Keith wrote:
>> > There have been several threads on this, particularly:-
>> > http://groups.google.com/group/comp.databases.informix/browse_thread/thread/ac2f0882c890f46a/825ba9ba79a9b877?q=%22oncheck+-me%22&rnum=1#825ba9ba79a9b877
Darn it - use: http://tinyurl.com/ahdro
>> > -> -----Original Message-----
>> > -> From: mweallans@panacea.co.uk [mailto:mweallans@panacea.co.uk]
>> > ->
>> > -> The Migration Guide refers to a command - oncheck -me -
>> > ->
>> > -> "Use the oncheck -me command to compress extents and reduce
>> > -> the amount of storage used in partition headers." Page 3-49 of the 9.4
>> > -> Migration Guide
>> > ->
>> > -> But I can find no reference to this anywhere else in the
>> > -> documentation.
>> > ->
>> > ->
>> > -> Is there any more information available on what this does?
>>
>> Bear in mind that this is the Migration guide, and that the discussion
>> includes migrating from IDS 7.x to IDS 9.4. This chapter is about
>> migrating from 9.x, 7.3x or 7.24 - and the section is about preparing to
>> upgrade. The 'oncheck -me' option is specific to IDS 7.3x (and was not
>> added in 7.30.UC1 or 7.31.UC1 IIRC), so you need to scout around the
>> 7.3x manuals and/or documentation notes or release notes to find out
>> about it. I think it could usefully be marked as specific to the 7.3x
>> source versions of IDS.
>>
>> No; I actually haven't gone looking at the 7.3x documentation or release
>> notes. If it isn't there either, it is a somewhat separate bug.
>>
>> As to what '-me' (merge extents) does: it moves data pages around so
>> that the number of extents in the table is reduced, reducing the chances
>> of failing during upgrade.
>>
>> Jonathan Leffler #include <disclaimer.h>
Jonathan Leffler #include <disclaimer.h>
Email: jleffler@earthlink.net, jleffler@us.ibm.com
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