block-storage

Manage block storage volumes and LVM.

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Install skill "block-storage" with this command: npx skills add bagelhole/devops-security-agent-skills/bagelhole-devops-security-agent-skills-block-storage

Block Storage

Manage block storage volumes and LVM.

LVM Management

Create physical volume

pvcreate /dev/sdb

Create volume group

vgcreate data_vg /dev/sdb

Create logical volume

lvcreate -L 50G -n app_lv data_vg

Format and mount

mkfs.ext4 /dev/data_vg/app_lv mount /dev/data_vg/app_lv /data

Extend volume

lvextend -L +10G /dev/data_vg/app_lv resize2fs /dev/data_vg/app_lv

AWS EBS

Create volume

aws ec2 create-volume
--availability-zone us-east-1a
--size 100
--volume-type gp3

Attach to instance

aws ec2 attach-volume
--volume-id vol-xxx
--instance-id i-xxx
--device /dev/xvdf

Best Practices

  • Use LVM for flexibility

  • Implement RAID for redundancy

  • Monitor disk I/O

  • Regular disk health checks

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