Asus hyper m.2 x16 card v2 put it on a server

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Here we go, I have to put these card on to my server with C620 chipset. I need fast local storage.
The card is not very expensive but i need 4×4 TB SSD on these server. So we started with a simple test. I bought 4x 16 GB Optane SSD for under 14 $ per piece. When it runs with this SSD so it will run also with the big ones.
That this runs we need a chipset that supports bifurcation with PCIe. With bifurcation you can split your 16x PCIe lane into 2×8, 4x4x4x4x or 8x4x4x. We need 4x4x4x4x every SSD needs 4x PCIe lanes. Would you read more about this topic look here https://blog.donbowman.ca/2017/10/06/pci-e-bifurcation-explained/

I have not really enough space. On this server there are also 4x 2080 TI graphics cards. It was very close that the card fit in it.

Next step was to configure the BIOS(UEFI) to talk correctly to this card. The automatic mode is not working. In automatic mode it detect only one SSD, the first one on the Asus card.

I used on the motherboard slot 10, this information is important to configured PE3 on CPU2 correct. We look in the manual of the motherboard to see which slot is connected with the CPU. Slot11 is not working there is not enough PCIe lanes only 4x. We need 16x to split into 4x4x4x4x
Let´s jump in to the BIOS.

On the BIOS follow the rabbit pictures.

We have to choose the right CPU. We use PE3 on CPU2

Change the IOU2 from Auto to 4x4x4x4, every SSD should runs with 4x PCIe lanes.

That was it.

Check under Linux with the command dmidecode -t 9

Ubuntu 20.04 mount cifs stale file handle

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What a pain in the ass. If you use mount.cifs under Ubuntu 20.04 and now you have stale file handle to edit files and more.

We look in to the manpage from mount.cifs and there is a option to solve this issue.

noserverino Client generates inode numbers itself rather than using the actual ones from the server.

See section INODE NUMBERS for more information.

linux pcie show available slots

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Today I had a request from our user for add a PCIe SSD card to a server. One option is you walk to this server and open it. This not the best option to check if it a PCIe slot available.
Another option is use your Linux commandline.

You need your server mainboard manual to see which slot is labeled.

You have only to check under current usage is in use or available. 

Current Usage: Available


dmidecode -t 9
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.2.1 present.
# SMBIOS implementations newer than version 3.2.0 are not
# fully supported by this version of dmidecode.
 
Handle 0x000B, DMI type 9, 17 bytes
System Slot Information
        Designation: CPU1 SLOT2 PCI-E 3.0 X16
        Type: x16 PCI Express 3 x16
        Current Usage: In Use
        Length: Long
        ID: 2
        Characteristics:
                3.3 V is provided
                Opening is shared
                PME signal is supported
        Bus Address: 0000:18:00.0
 
Handle 0x000C, DMI type 9, 17 bytes
System Slot Information
        Designation: CPU1 SLOT4 PCI-E 3.0 X16
        Type: x16 PCI Express 3 x16
        Current Usage: In Use
        Length: Short
        ID: 4
        Characteristics:
                3.3 V is provided
                Opening is shared
                PME signal is supported
        Bus Address: 0000:3b:00.0
 
Handle 0x000D, DMI type 9, 17 bytes
System Slot Information
        Designation: CPU2 SLOT6 PCI-E 3.0 X16
        Type: x16 PCI Express 3 x16
        Current Usage: In Use
        Length: Short
        ID: 6
        Characteristics:
                3.3 V is provided
                Opening is shared
                PME signal is supported
        Bus Address: 0000:86:00.0
 
Handle 0x000E, DMI type 9, 17 bytes
System Slot Information
        Designation: CPU2 SLOT8 PCI-E 3.0 X16
        Type: x16 PCI Express 3 x16
        Current Usage: In Use
        Length: Short
        ID: 8
        Characteristics:
                3.3 V is provided
                Opening is shared
                PME signal is supported
        Bus Address: 0000:af:00.0
 
Handle 0x000F, DMI type 9, 17 bytes
System Slot Information
        Designation: CPU1 SLOT9 PCI-E 3.0 X16
        Type: x16 PCI Express 3 x16
        Current Usage: Available
        Length: Short
        ID: 9
        Characteristics:
                3.3 V is provided
                Opening is shared
                PME signal is supported
        Bus Address: 0000:ff:00.0
 
Handle 0x0010, DMI type 9, 17 bytes
System Slot Information
        Designation: CPU2 SLOT10 PCI-E 3.0 X16
        Type: x16 PCI Express 3 x16
        Current Usage: Available
        Length: Short
        ID: 10
        Characteristics:
                3.3 V is provided
                Opening is shared
                PME signal is supported
        Bus Address: 0000:ff:00.0
 
Handle 0x0011, DMI type 9, 17 bytes
System Slot Information
        Designation: CPU2 SLOT11 PCI-E 3.0 X4(IN X8)
        Type: x4 PCI Express 3 x8
        Current Usage: Available
        Length: Short
        ID: 11
        Characteristics:
                3.3 V is provided
                Opening is shared
                PME signal is supported
        Bus Address: 0000:ff:00.0
 
Handle 0x0012, DMI type 9, 17 bytes
System Slot Information
        Designation: M.2 CONNECTOR
        Type: x4 M.2 Socket 2
        Current Usage: In Use
        Length: Short
        Characteristics:
                3.3 V is provided
                Opening is shared
                PME signal is supported
        Bus Address: 0000:02:00.0

VMWARE NSX-T Load Balancer for Exchange

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A very long time I used ha-proxy for lb to publish Exchange OWA/Active-Sync in to the WWW. After the installation with NSX-T. I have the opportunity to replace my old ha-proxy configuration with the integrated LB from NSX-T. I would like to replace the ha-proxy for internal MAPI namespace. Normally that will be used often KEMP LB or ha-proxy. With NSX-T you can also replace this product. To Replace MAPI Namespace lb is very simple that will be used only TCP for lb.

I will not write how to deploy the LB that can you read here.
https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.1/administration/GUID-D39660D9-278B-4D08-89DF-B42C5400FEB2.html

I will show you some configuration where not included in the knowledge base.

To protect your Administrator interface from external access. In my old ha-proxy configuration I had a ACL to protect ecp from external.

For the OWA rule you must add a forwarding rule with this options.

For your SSL configuration you need your domain certificate and intermediate certificates also.
You need Client SSL and Server SSL. You can use twice the same certificate,.

Before you can assign the certificates you have to import the certificates for your domain and the intermediate certificates under System = >Certificates

After importing the certificates you can assign this to your Virtual Servers HTTP 7 rule.
Trusted CA Certificates means your intermediate certificate.

vmware object type requires hosted I/O

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VM wil not power-on and throws the following error:

Object type requires hosted I/O

SSH into the ESX-host that’s hosting the VM.
Browse to the VM-folder containing the disk files.

Run the following command:

vmkfstools -x check “disk.vmdk”
Disk needs repaired

vmkfstools -x repair “disk.vmdk”
Disk was successfully repaired.

Start VM from vCenter

found here

https://tklaassens.wordpress.com/2019/05/13/object-type-requires-hosted-i-o/

Confluence alternative

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What a incredible e-mail from Atlassian, cloud first. Not everyone wants to use the cloud. I worked with Confluence and Jira over ten years now. Time for alternative Wikis. I am a little bit sad about the cloud first strategy. Confluence and Jira are pretty cool tools.
Time for alternative Wiki´s

https://wiki.js.org/

This Wiki very close to Confluence. But one feature is missing

https://wiki.js.org/feedback/p/multi-sites

Multi Sites

BlueSpice based on MediaWiki but it have a lot more features and a good Editor.

bluespice.com

Multi Sites only available in the enterprise version.

Also look at tiki.org but is more than a wiki

For Jira alternative

I found

http://www.tuleap.org or https://www.openproject.org

ASA Local Authentication Using Active Directory

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I had a heck of a time figuring out how to set this up. Cisco’s documentation related to LDAP authentication is all over the place and there isn’t one article that describes just this. If you want to use Microsoft Active Directory to authenticate users locally logging in to the ASA and give them privileged exec access based on a Group, here are the steps.

These steps assume you are using ASDM, but I have attached the CLI equivalents as well.

Prep

  • Create a group in Active Directory that will be used to define access to the ASA. I.e. ASA Admins.
  • Create a service account (password not expiring unless you want to change it in AD and your ASA every month) that will be used by the ASA to bind with AD.

Do it

1. Log in to the ASA with ASDM (CLI steps below)

2. Go to Device…

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Mount cif share as user

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On Ubuntu you need the cifs-utils

apt-get install cifs-utils

Add the share to the /etc/fstab

//10.10.100.10/blob /mount/share cifs username=john,domain=contoso,noauto,rw,users 0 0

set the correct rights for the local user to the mount share.

sudo mkdir /mount/share
sudo chown -R john:john contoso
sudo chmod -R 774 contoso

Mount the share with mount.cifs

mount.cifs  //10.10.100.10/blob /mount/share

Don´t use mount -t cifs

read more here

https://www.strika.co/ubuntu-14-04-how-to-properly-mount-a-cifs-share-as-a-normal-user/