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docs/merlin6/quick-start-guide/requesting-accounts.md
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## Requesting Access to Merlin6
Access to Merlin6 is regulated by a PSI user's account being a member of the **`svc-cluster_merlin6`** group. Access to this group will also grant access to older generations of Merlin (`merlin5`).
In the past, access to the public Merlin6 cluster was regulated via the `svc-cluster_merlin6` group, which is no longer in use.
Merlin6 has become a private cluster, and to request access, **users must now be members of one of the Unix groups authorized to use it**, including Gwendolen.
Requesting **Merlin6** access *has to be done* with the corresponding **[Request Linux Group Membership](https://psi.service-now.com/psisp?id=psi_new_sc_cat_item&sys_id=84f2c0c81b04f110679febd9bb4bcbb1)** form, available in the [PSI Service Now Service Catalog](https://psi.service-now.com/psisp).
Requests for Merlin6 access must be submitted using the [Request Linux Group Membership](https://psi.service-now.com/psisp?id=psi_new_sc_cat_item&sys_id=84f2c0c81b04f110679febd9bb4bcbb1) form, available in the [PSI ServiceNow Service Catalog](https://psi.service-now.com/psisp). Access is granted by requesting membership in a Unix group that is permitted to use the cluster.
![Example: Requesting access to Merlin6](../../images/Access/01-request-merlin6-membership.png)
Mandatory customizable fields are the following:
### Mandatory fields
* **`Order Access for user`**, which defaults to the logged in user. However, requesting access for another user it's also possible.
* **`Request membership for group`**, for Merlin6 the **`svc-cluster_merlin6`** must be selected.
* **`Justification`**, please add here a short justification why access to Merlin6 is necessary.
The following fields must be completed:
Once submitted, the Merlin responsible will approve the request as soon as possible (within the next few hours on working days). Once the request is approved, *it may take up to 30 minutes to get the account fully configured*.
* **Order Access for user**: Defaults to the currently logged-in user. Access may also be requested on behalf of another user.
* **Request membership for group**: Select a valid Unix group that has access to Merlin6.
* **Justification**: Provide a brief explanation of why access to this group is required.
## Requesting Access to Merlin5
Access to Merlin5 is regulated by a PSI user's account being a member of the **`svc-cluster_merlin5`** group. Access to this group does not grant access to newer generations of Merlin (`merlin6`, `gmerlin6`, and future ones).
Requesting **Merlin5** access *has to be done* with the corresponding **[Request Linux Group Membership](https://psi.service-now.com/psisp?id=psi_new_sc_cat_item&sys_id=84f2c0c81b04f110679febd9bb4bcbb1)** form, available in the [PSI Service Now Service Catalog](https://psi.service-now.com/psisp).
![Example: Requesting access to Merlin5](../../images/Access/01-request-merlin5-membership.png)
Mandatory customizable fields are the following:
* **`Order Access for user`**, which defaults to the logged in user. However, requesting access for another user it's also possible.
* **`Request membership for group`**, for Merlin5 the **`svc-cluster_merlin5`** must be selected.
* **`Justification`**, please add here a short justification why access to Merlin5 is necessary.
Once submitted, the Merlin responsible will approve the request as soon as possible (within the next few hours on working days). Once the request is approved, *it may take up to 30 minutes to get the account fully configured*.
Once the request is submitted, the corresponding group administrators will review and approve it as soon as possible (typically within a few working hours). After approval, it may take up to 30 minutes for the account to be fully configured and access to become effective.
## Further documentation
Further information it's also available in the Linux Central Documentation:
Additional information is available in the Linux Central Documentation:
* [Unix Group / Group Management for users](https://linux.psi.ch/documentation/services/user-guide/unix_groups.html)
* [Unix Group / Group Management for group managers](https://linux.psi.ch/documentation/services/admin-guide/unix_groups.html)
**Special thanks** to the **Linux Central Team** and **AIT** to make this possible.