# ADABAS C **URL:** \ **Category:** Forum\ **Tags:** Adabas-Natural, Adabas, Adabas-on-Mainframes, Adabas-on-Windows-UNIX, Adabas-Basics-on-Mainframes\ **Created:** [March 29, 2012, 8:15pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055 "2012-03-29T20:15:25Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![DN1](https://avatars.discourse-cdn.com/v4/letter/d/41988e/32.png) [@DN1](https://techcommunity.softwareag.com/u/DN1)\ **Post date:** [March 29, 2012, 8:15pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/1 "2012-03-29T20:15:25Z")
IS ADABAS C same as normal ADABAS? What is difference? Definition: ADABAS C is SAGA’s Adaptable Database management system. thanks ---
**Author:** ![Ralph\_Zbrog](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/ralph_zbrog/32/78_2.png) [@Ralph\_Zbrog](https://techcommunity.softwareag.com/u/Ralph_Zbrog)\ **Post date:** [March 29, 2012, 8:45pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/2 "2012-03-29T20:45:03Z")
Adabas C (centralized?) is the one most of us use - “normal Adabas”, as you say. It’s available on the mainframe and Linux/Unix/Windows. Adabas D (distributed) is a relational version. There was an Adabas M version for a while, too. ---
**Author:** ![DN1](https://avatars.discourse-cdn.com/v4/letter/d/41988e/32.png) [@DN1](https://techcommunity.softwareag.com/u/DN1)\ **Post date:** [March 29, 2012, 9:18pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/3 "2012-03-29T21:18:12Z")
thanks, what about the terminologies. we are running ADABAS on z/OS. I am reading ADABAS C Fundamental Guide, they had mentioned General Control Block (GCB), File Control Blocks (FCBs) and Free Space Table (FST). But I did not find this in our ADAREP. ---
**Author:** ![Ralph\_Zbrog](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/ralph_zbrog/32/78_2.png) [@Ralph\_Zbrog](https://techcommunity.softwareag.com/u/Ralph_Zbrog)\ **Post date:** [March 29, 2012, 9:46pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/4 "2012-03-29T21:46:50Z")
These components are used internally by Adabas. We have no direct access to them, so there is no use in including them in an Adarep. These control blocks are discussed in the Adabas Internals training class. SAG’s Technical Forums are not a replacement for such courses. ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [March 29, 2012, 11:03pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/5 "2012-03-29T23:03:59Z")
But a lot of information ADAREP shows you is obtained from GCB and FCBs. FST = “Unused Storage”. ---
**Author:** ![DN1](https://avatars.discourse-cdn.com/v4/letter/d/41988e/32.png) [@DN1](https://techcommunity.softwareag.com/u/DN1)\ **Post date:** [March 29, 2012, 11:09pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/6 "2012-03-29T23:09:27Z")
I did not find “Unused Storage”. in ADAREP ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [March 29, 2012, 11:19pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/7 "2012-03-29T23:19:41Z")
Example taken from docimentation: ```auto P H Y S I C A L L A Y O U T DD- I DEV I NMBR OF I NMBR OF EXTENTS IN BLK. I BLOCK I NMBR OF I NAMES I TYPE I CYLS I BLOCKS FROM TO I LNGTH I M-BYTE I ----------I-------I---------I-------------------------I-------I---------I I I I I I I ASSOR1 I 3380 I 100 I 28481 1 28481 I 2004 I 54 I I I I I I I DATAR1 I 3380 I 200 I 26991 1 26991 I 4820 I 124 I I I I I I I WORKR1 I 3380 I 40 I 5391 1 5391 I 4820 I 24 I I I I I I I ------------------------------------------------------------------------- U N U S E D S T O R A G E DD- I DEV I NMBR OF I NMBR OF EXTENTS IN BLK. I BLOCK I NMBR OF I NAMES I TYPE I CYLS I BLOCKS FROM TO I LNGTH I M-BYTE I ----------I-------I---------I-------------------------I--------I---------I I I I I I I ASSOR1 I 3380 I 98 I 28134 328 28461 I 2004 I 54 I I I I I I I DATAR1 I 3380 I 198 I 26811 131 26941 I 4820 I 124 I ``` ---
**Author:** ![DN1](https://avatars.discourse-cdn.com/v4/letter/d/41988e/32.png) [@DN1](https://techcommunity.softwareag.com/u/DN1)\ **Post date:** [March 29, 2012, 11:26pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/8 "2012-03-29T23:26:04Z")
What should be GCB and FCBs. FST? ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [March 30, 2012, 12:01am UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/9 "2012-03-30T00:01:28Z")
The “unused storage” printed on an ADAREP only tells you about the free space at the container level, but not at the file level, i.e. you will not see FST information there. The report gives you “unused” informatio at the file level ```auto File Name Alloc.: NI UI AC Data/Cyl Unused: 1 CHECKPOINT 3 3 12 100/3 1 3 2 52/1 4 ADASCR 2 2 2 30/1 4 1 0 29/0 8 FNAT 17 13 66 1800/60 8 15 10 1797/59 ``` but this has nothing to do with the FST either. When you look at the physical layout ```auto *********************************** * * * Physical Layout of the Database * * * *********************************** From To Number Dev Table File VOLSER Blk Blk of Blks Type Type Number 1031 - 1062 32 8393 PPT 0 FSM044 1063 - 1064 2 8393 DSST 0 FSM044 1065 - 1074 10 8393 UNUSED 0 FSM044 1075 - 1076 2 8393 AC 9 FSM044 1077 - 1093 17 8393 NI 9 FSM044 1094 - 1105 12 8393 UI 9 FSM044 ``` you will (probably) notice the ASSO information does not start with RABN 1, simply because the low range contains the GCB and the FCBs, how many blocks are reserved for that depends on the maxfiles setting. ---
**Author:** ![Chanchal\_Ganguly](https://avatars.discourse-cdn.com/v4/letter/c/48db29/32.png) [@Chanchal\_Ganguly](https://techcommunity.softwareag.com/u/Chanchal_Ganguly)\ **Post date:** [May 10, 2012, 9:17am UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/10 "2012-05-10T09:17:46Z")
Is there a way to Migrate Adabas C (Mainframe) into Adabas D(Unix)? If yes and SAG tools are available on this, please provide me the needed information. Thanx. ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [May 10, 2012, 1:53pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/11 "2012-05-10T13:53:47Z")
Yes, a number of tools are available, but all at additional cost. With “built in” tools you will have to unload/decompress from Adabas C, creating fixed format output, then on Linux somehow “flatten” the structures and load into Adabas D. ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [May 10, 2012, 2:48pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/12 "2012-05-10T14:48:16Z")
Why not from Adabas C (Mainframe) into Adabas [i]C/i? ---
**Author:** ![Sefa\_Eker](https://avatars.discourse-cdn.com/v4/letter/s/9e8a1a/32.png) [@Sefa\_Eker](https://techcommunity.softwareag.com/u/Sefa_Eker)\ **Post date:** [July 2, 2014, 12:49pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/13 "2014-07-02T12:49:56Z")
there is no any info about differences adabas c and adabas d on the website. [http://www.softwareag.com/corporate/products/transactions/adabas/overview/default.asp](http://www.softwareag.com/corporate/products/transactions/adabas/overview/default.asp) how can i reach to documentation for “adabas c in linux”? ---
**Author:** ![Marbod\_Mueller1](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/marbod_mueller1/32/97_2.png) [@Marbod\_Mueller1](https://techcommunity.softwareag.com/u/Marbod_Mueller1)\ **Post date:** [July 2, 2014, 2:22pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/14 "2014-07-02T14:22:53Z")
Adabas C == alias Adabas Open Systems == alias Adabas LUW [http://techcommunity.softwareag.com/ecosystem/documentation/adabas/a\_adabas\_os/adabas\_os\_vers.htm](http://techcommunity.softwareag.com/ecosystem/documentation/adabas/a_adabas_os/adabas_os_vers.htm) ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [April 2, 2021, 3:01pm UTC](https://techcommunity.softwareag.com/t/adabas-c/100055/15 "2021-04-02T15:01:43Z")