nocin.eu

Homelab, Linux, JS & ABAP (~˘▾˘)~
 
ZFS

[ZFS] Send unencrypted dataset to encrypted pool

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I recently added some disks to my TrueNAS server and created a new encrypted pool named data2 on it. My old pool data was created years ago, before the zfs encryption feature was released, so it is an unencrypted pool. Now I wanted to move a dataset, i.e. photos, to my new pool data2. I tried to archieve this via TrueNAS Gui using the Replication Task, but always got errors that it’s not possible to send unencrypted data to an encrypted pool.

On Reddit I found a thread with a solution using the parameter -x encryption.

Because I prefer keeping all my snapshots when moving a dataset, I send my oldest snapshot first.

zfs send -v data/photos@manual-01-05-2019 | zfs recv -x encryption data2/photos

In the next step I created a new snapshot and did an incremental send with the parameter -I (send incremental snapshots).

zfs send -v -I data/photos@manual-01-05-2019 data/photos@manual-01-10-2020 | zfs recv -F -x encryption data2/photos

Compare the datasets with zfs diff (see example here) or use the classic diff command to compare the folders:

diff -qr /mnt/data/photos /mnt/data2/photos
#or in background
diff -qr /mnt/data/photos /mnt/data2/photos >> diff.output & disown
#check if process finished with "ps"
less diff.output

Check if all Snapshots were replicated with:

zfs list -t snapshot | grep data2/photos

After that I just changed the path for my NFS photo share and did a sudo mount -a on the clients. Now the whole dataset is moved and encrypted.

Fiori / SAPUI5

[SAPUI5] Copy Table Row

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Button für das Kopieren einer Zeile hinzufügen.

<Table id="itemsTable" items="{oModel>/ITEMS}">
<columns>
      <Column id="splitColumn" hAlign="Center" demandPopin="false">
            <Text text="{i18n>SPLIT}"/>
      </Column>
</columns>
<items>
      <ColumnListItem>
            <cells>
                  <Button press="onSplitPressed" id="SPLIT_ROW" icon="{= ${oModel>CUSTOM_ITEM} === true ? 'sap-icon://delete' : 'sap-icon://add'}"/>
            </cells>
      </ColumnListItem>
</items>
</Table>

Nur neu hinzugefügte Zeilen sollen auch wieder gelöscht werden dürfen, daher werden manuell hinzugefügte Zeilen markiert mit CUSTOM_ITEM = True;
Via Expression Binding wird dann das erforderliche Icon bestimmt.

onSplitPressed: function (oEvent) {
		var oContext = oEvent.getSource().getBindingContext("oModel");
		var path = oContext.getPath();
		var oModel = oContext.getModel();
		var oItems = oModel.getProperty("/ITEMS");
		var index = path.substr(path.length - 1);

		//selektiertes Item lesen
		var oItem = oModel.getProperty(path);

		//was soll passieren? Zeile hinzufügen oder entfernen?
		if (oItem.CUSTOM_ITEM !== true) {

			//Neues Item anlegen
			var oNewItem = JSON.parse(JSON.stringify(oItem));
			//Markiere neue Zeile, da nur diese auch wieder gelöscht werden darf
			oNewItem.CUSTOM_ITEM = true;
			// +1 weil Zeile soll ja nach der Aktuellen einfügt werden
			index++; 
			oItems.splice(index, 0, oNewItem);

		} else {
			// Item löschen
			oItems.splice(index, 1);
		}

		oModel.setProperty("/ITEMS", oItems);
	},

NAS

[NAS] WD Red Plus -> CMR

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https://www.heise.de/news/NAS-Festplatten-Western-Digital-fuehrt-WD-Red-Plus-fuer-CMR-Garantie-ein-4794455.html

“Western Digital macht künftig besser erkenntlich, welche WD-Red-Festplatten auf klassisches Conventional Magnetic Recording (CMR) oder potenziell langsameres Shingled Magnetic Recording (SMR) setzen: Der Hersteller überführt alle CMR-Modelle der WD-Red-Serie in die neue Baureihe WD Red Plus. Wer künftig eine normale WD-Red-Festplatte ohne Namenszusatz kauft, bekommt folglich sicher eine SMR-Variante.”

CMR = Conventional Magnetic Recording
SMR = Shingled Magnetic Recording (ungeeignet für NAS)

https://dennisvitt.de/western-digital-fuehrt-wd-red-plus-festplattenreihe-ein-umbenennung-aufgrund-cmr-und-smr/

CMR Produktbezeichnungen: WD10EFRX (1 TB), WD20EFRX (2 TB) , WD30EFRX (3 TB), WD40EFRX (4 TB), WD60EFRX (6 TB), WD80EFAX (8 TB), WD101EFAX (10 TB), WD120EFAX (12 TB), WD140EFAX (14 TB)

SMR Produktbezeichnungen: WD20EFAX (2 TB), WD30EFAX (3 TB), WD40EFAX (4 TB) und WD60EFAX (6 TB)

ALV

[ABAP] ALV column header

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DATA: o_salv TYPE REF TO cl_salv_table.

cl_salv_table=>factory( IMPORTING r_salv_table = o_salv
                        CHANGING  t_table      = l_lines ).

LOOP AT o_salv->get_columns( )->get( ) REFERENCE INTO DATA(l_column).
  DATA(lo_column) = CAST cl_salv_column( l_column->r_column ).
  lo_column->set_fixed_header_text( 'L' ).
ENDLOOP.

o_salv->get_columns( )->get_column( 'TEST1' )->set_long_text( 'Test1 Header' ).
o_salv->get_columns( )->get_column( 'TEST2' )->set_long_text( 'Test2 Header' ).

o_salv->get_columns( )->get_column( 'TEST1' )->set_output_length( 30 ). "to increase the column width

Update 27.01.2026: Better use set_optimize

  TRY.
      cl_salv_table=>factory( IMPORTING r_salv_table = DATA(lo_alv)
                               CHANGING t_table      = ausgabe_tab ).

      lo_alv->get_columns( )->get_column( 'TEST1' )->set_long_text( 'Test1 Header' ).
      lo_alv->get_columns( )->set_optimize( abap_true ).

      lo_alv->display( ).
    CATCH cx_salv_msg.
  ENDTRY.

GNU/Linux, Mint

[Hardware] ASUS TUF GAMING B550M-PLUS and RTL8125B Realtek

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Just switched some hardware parts in my main PC:

I moved from Intel to an AMD build. I kept my boot disk with Linux Mint 20 and everything was running out of the box, except there was no ethernet connection available. The RTL8125B Realtek network card is not yet supported on a Kernel < 5.9. Since I’m running Kernel 5.6.14, I had to manual install it.

Go to: https://www.realtek.com/en/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-pci-express-software

Download the “2.5G Ethernet LINUX driver r8125 for kernel up to 5.6”, untar and follow the installation instructions from the README. In fact you only have to run 

sudo ./autorun.sh
#check with
lsmod | grep r8125
ifconfig -a
Fiori / SAPUI5

[Fiori] Debug deployed Fiori App

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When opening the Dev-Tools for a deployed Fiori App, it will look like this:

You won’t see any controller.js to debug.
What to do? Close the Debugger-Tools and hit CTRL+ALT+SHIFT+P to open the Technical Information Dialog

Check the Checkbox (or choose a specific controller) and reload the app.

It reloads with a new URL parameter and if you open the Dev-Tools, you will now see the controller.js.

Other options to debug or at least to collect some information about your app are the UI5 Diagnostics (hit CTRL+ALT+SHIFT+S) and the UI5 Inspector which is a Browser Addon.

BAdI, HR

[HR] Infotype – add PBO or PAI logic

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There are many ways to add custom logic when processing an Infotype. Here are just a few:

SMOD
PBAS0001
PBAS0002

ZXPADU01 – when an infotype is called
ZXPADU02 – when an action is performed on an infotype

https://regotz.jimdofree.com/abap/dynpro/infotypen-pai-pbo/

BAdI’s

  • HRPAD00INFTY (method IN_UPDATE) is called by the old infotype framework (PA30, SAP50UPR)
  • HRPAD00INFTYDB (method UPDATE_DB) is called in the decoupled infotype framework

BAdI: HRPAD00INFTY – Verbucher / Infotyp-Pflege

This image has an empty alt attribute; its file name is image-1.png

This image has an empty alt attribute; its file name is image-2.png
Interface: IF_EX_HRPAD00INFTY

BAdI: HRPAD00INFTYDB – HR: Stammdaten, Infotype DB Update Logik

“The BAdI is called, after the decoupled infotype framework writes the infotype data to the database. This is done during method FLUSH.”
Note: The Infotypes 2000-2999 are not decoupled yet! More here and here.

IF_EX_HRPAD00INFTYBL
IF_EX_HRPAD00INFTYDB
Software, Terminal

[NAS] Megarac SP Gui / IPMI

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In meinem NAS nutze ich seit vielen Jahren als Motherboard ein ASRock C2550D4I mit einer recht stromsparsamen on-Board CPU und einer BMC/IPMI Schnittstelle, welche Fernwartung über einen separaten LAN Port möglich macht.

BMC = Baseboard Management Controllers
IPMI = Intelligence Platform Management Interface

Bei einem BMC Update hat sich leider die WebGui verabschiedet und ich musste mir die Sache auf der Konsole anschauen. Dafür habe ich IPMITOOL installiert und verwendet. Dabei stellte sich heraus, dass lediglich die Netzwerkeinstellungen verloren gegangen sind.

Hier einige hilfreiche Befehle im Umgang mit dem IPMITOOL, welche mir geholfen haben. Über diesen Weg lässt sich ebenfalls das Passwort des Admin-Users zurücksetzen.

# install 
sudo apt install ipmitool

# display sensor & network settings
sudo ipmitool sensor
sudo ipmitool lan print 1

#set network settings
sudo ipmitool lan set 1 ipsrc static
sudo ipmitool lan set 1 ipaddr 192.168.178.3
sudo ipmitool lan set 1 defgw ipaddr 192.168.178.1


# Reset password
# https://support.oneidentity.com/de-de/kb/261220/reset-the-bmc-ipmi-password
sudo ipmitool user list 1
ID  Name	     Callin  Link Auth	IPMI Msg   Channel Priv Limit
1                    false   false      true       ADMINISTRATOR
2   admin            true    true       true       ADMINISTRATOR
3                    true    false      false      NO ACCESS
4                    true    false      false      NO ACCESS
5                    true    false      false      NO ACCESS
6                    true    false      false      NO ACCESS
7                    true    false      false      NO ACCESS
8                    true    false      false      NO ACCESS
9                    true    false      false      NO ACCESS
10                   true    false      false      NO ACCESS
sudo ipmitool user set password 2
Password for user 2: 
Password for user 2: 
Set User Password command successful (user 2)


# IPMI reseten
# https://www.thomas-krenn.com/de/wiki/IPMI_BMC_reset_bei_IPMI_Problemen
sudo ipmitool mc reset cold
# or remote with
ipmitool -I lanplus -H ip_address -U admin -a bmc reset cold

# Wenn das nicht hilft, ggf. hier schauen:
# https://portal.nutanix.com/page/documents/kbs/details?targetId=kA00e000000CrKRCA0