> ## Documentation Index
> The index for all IBM Cloud docs is at: https://cloud.ibm.com/docs/llms.txt
> Use these files to discover more information as needed.

# Block Storage - Classic

Block storage is a technology that is used to store data files on storage area networks (SANs) or cloud-based storage environments.

## Get started

- [Getting started with Block Storage for Classic](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-getting-started&format=markdown)
- [Best practices for Block Storage for Classic](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-best-practices-classic&format=markdown)
- [Understanding snapshots for data protection](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-snapshots&format=markdown)
- [What is Block Storage?](https://www.ibm.com/think/topics/block-storage)

## Tutorials

- [Mount iSCSI volume on Red Hat Enterprise Linux 9](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-mountingRHEL&format=markdown)
- [Mount iSCSI volume on Ubuntu OS](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-mountingUbuntu&format=markdown)
- [Mount iSCSI volume on CloudLinux 8](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-mountingCloudLin8&format=markdown)
- [Mount iSCSI volumes on Microsoft Windows](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-mountingWindows&format=markdown)

## How to

- Provisioning
   - [Ordering Block Storage](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-orderingBlockStorage&format=markdown)
   - [Ordering snapshot space](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-orderingsnapshots&format=markdown)
   - [Managing storage limits](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-managingstoragelimits&format=markdown)
   - [Upgrading to enhanced storage](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-migratestorage&format=markdown)
- Configuring
   - [Adjusting host queue depth settings](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-hostqueuesettings&format=markdown)
   - [Enabling Jumbo Frames in IBM Cloud](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-jumboframes&format=markdown)
   - [Configuring Block Storage for Classic for backup with cPanel](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-cPanelBackups&format=markdown)
   - [Configuring Block Storage for Classic for backup with Plesk](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-PleskBackups&format=markdown)
   - [Mounting ISCSI VMware ESXi](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-mount-iscsi-esxi&format=markdown)
- Managing
   - [Managing volumes](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-managingstorage&format=markdown)
   - [Expanding volume capacity](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-expandingcapacity&format=markdown)
   - [Adjusting IOPS](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-adjustingIOPS&format=markdown)
   - [Managing snapshots](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-managingSnapshots&format=markdown)
   - [Identifying Logical Unit Number IDs (LUN IDs)](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-identifyLUN&format=markdown)
- Replication and Disaster Recovery
   - [Replicating volumes for disaster recovery](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-replication&format=markdown)
   - [Fail over with accessible primary](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-dr-accessible&format=markdown)
   - [Fail over from inaccessible primary](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-dr-inaccessible&format=markdown)
   - [Creating duplicate volumes](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-duplicatevolume&format=markdown)
- Enhancing Security
   - [Availability and durability](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-storageavailability&format=markdown)
   - [Securing your data](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-mng-data&format=markdown)
   - [Achieving full disk encryption with LUKS in RHEL](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-LUKSencryption&format=markdown)
   - [Encryption options for IBM Cloud® classic infrastructure storage](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-encryption-classic-infrastructure&format=markdown)

## Reference

- Identity and Access Management
   - [Managing classic infrastructure access](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-mngclassicinfra&format=markdown)
   - [Managing migrated SoftLayer account permissions](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-migrated_permissions&format=markdown)
- Service Level Agreement
   - [Service Level Agreements for IBM Cloud (Public Cloud)](https://www.ibm.com/support/customer/csol/terms)
- Data portability
   - [Understanding data portability for Block Storage for Classic](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-data-portability&format=markdown)
- API reference
   - [Introduction to the SL API](https://sldn.softlayer.com/article/getting-started/)
   - [Python API Client Information](https://softlayer-python.readthedocs.io/en/latest/index.html)
- Command reference
   - [Working with the Block Storage for Classic service (ibmcloud sl block)](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-sl-block-storage&format=markdown)
   - [Managing Block Storage for Classic with SLCLI commands](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-SLCLIcommands&format=markdown)
- Terraform reference
   - [Terraform reference](https://registry.terraform.io/providers/IBM-Cloud/ibm/latest/docs/resources/storage_block)

## Help

- FAQs
   - [FAQ for Block Storage for Classic](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-block-storage-faqs&format=markdown)
   - [Getting help and support for Block Storage for Classic](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-help-and-support&format=markdown)
- Troubleshooting
   - [Why do I get an insufficient permissions error when I try to update my volume?](https://cloud.ibm.com/docs/BlockStorage?topic=BlockStorage-ts-insufficient-permissions&format=markdown)