If you decommission one pool from a multiple pool deployment, you can't reuse the same node (hostname) sequence for a new pool. If you are using expansion notation to define a set of hostnames for the pool, each new pool must continue the numerical sequence even if some pools were decommissioned along the way. Staged linux http://192.241.195.202:9000/staging/DOCS-1250/linux/operations/concepts.html#can-i-change-the-size-of-an-existing-minio-deployment k8s http://192.241.195.202:9000/staging/DOCS-1250/k8s/operations/install-deploy-manage/modify-minio-tenant.html#decommission-a-tenant-server-pool Fixes https://github.com/minio/docs/issues/1250
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The following tabs provide examples of installing MinIO onto 64-bit
Linux operating systems using RPM, DEB, or binary. The RPM and DEB
packages automatically install MinIO to the necessary system paths and
create a minio
service for systemctl
. MinIO
strongly recommends using the RPM or DEB installation routes. To update
deployments managed using systemctl
, see minio-upgrade-systemctl
.
RPM (RHEL)
Use the following commands to download the latest stable MinIO RPM and install it.
wget |minio-rpm| -O minio.rpm
sudo dnf install minio.rpm
DEB (Debian/Ubuntu)
Use the following commands to download the latest stable MinIO DEB and install it:
wget |minio-deb| -O minio.deb
sudo dpkg -i minio.deb
Binary
Use the following commands to download the latest stable MinIO binary
and install it to the system $PATH
:
wget https://dl.min.io/server/minio/release/linux-amd64/minio
chmod +x minio
sudo mv minio /usr/local/bin/
The following tabs provide examples of updating MinIO onto 64-bit Linux operating systems using RPM, DEB, or binary executable.
For infrastructure managed by tools such as Ansible or Terraform, defer to your internal procedures for updating packages or binaries across multiple managed hosts.
RPM (RHEL)
Use the following commands to download the latest stable MinIO RPM and update the existing installation.
curl |minio-rpm| -O minio.rpm
sudo dnf update minio.rpm
DEB (Debian/Ubuntu)
Use the following commands to download the latest stable MinIO DEB and upgrade the existing installation:
curl |minio-deb| -O minio.deb
sudo dpkg -i minio.deb
Binary
Use the following commands to download the latest stable MinIO binary and overwrite the existing binary:
curl https://dl.min.io/server/minio/release/linux-amd64/minio
chmod +x minio
sudo mv minio /usr/local/bin/
Replace /usr/local/bin
with the location of the existing
MinIO binary. Run which minio
to identify the path if not
already known.
You can validate the upgrade by computing the SHA256
checksum of each binary and ensuring the checksum matches across all
hosts:
shasum -a 256 /usr/local/bin/minio
The output of minio --version <minio server>
should also
match across all hosts.
MinIO enables Transport Layer Security (TLS) <minio-tls>
1.2+
automatically upon detecting a valid x.509 certificate
(.crt
) and private key (.key
) in the MinIO
${HOME}/.minio/certs
directory.
For systemd
-managed deployments, use the
$HOME
directory for the user which runs the MinIO server
process. The provided minio.service
file runs the process
as minio-user
. The previous step includes instructions for
creating this user with a home directory
/home/minio-user
.
- Place TLS certificates into
/home/minio-user/.minio/certs
on each host. - If any MinIO server or client uses certificates signed by
an unknown Certificate Authority (self-signed or internal CA), you
must place the CA certs in the
/home/minio-user/.minio/certs/CAs
on all MinIO hosts in the deployment. MinIO rejects invalid certificates (untrusted, expired, or malformed).
If the minio.service
file specifies a different user
account, use the $HOME
directory for that account.
Alternatively, specify a custom certificate directory using the minio server --certs-dir
commandline argument. Modify the MINIO_OPTS
variable in
/etc/default/minio
to set this option. The
systemd
user which runs the MinIO server process
must have read and listing permissions for the specified
directory.
For more specific guidance on configuring MinIO for TLS, including
multi-domain support via Server Name Indication (SNI), see minio-tls
. You can optionally
skip this step to deploy without TLS enabled. MinIO strongly recommends
against non-TLS deployments outside of early development.
Open your browser and access any of the MinIO hostnames at port
:9001
to open the MinIO Console <minio-console>
login page. For
example, https://minio1.example.com:9001
.
Log in with the MINIO_ROOT_USER
and MINIO_ROOT_PASSWORD
from
the previous step.
You can use the MinIO Console for general administration tasks like Identity and Access Management, Metrics and Log Monitoring, or Server Configuration. Each MinIO server includes its own embedded MinIO Console.
MinIO strongly recommends direct-attached JBOD (Just a Bunch of Disks)
arrays with XFS-formatted disks for best performance. Using any other
type of backing storage (SAN/NAS, ext4, RAID, LVM) typically results in
a reduction in performance, reliability, predictability, and
consistency.
Ensure all server drives for which you intend MinIO to use are of the
same type (NVMe, SSD, or HDD) with identical capacity (e.g.
12
TB). MinIO does not distinguish drive types and does not
benefit from mixed storage types. Additionally. MinIO limits the size
used per drive to the smallest drive in the deployment. For example, if
the deployment has 15 10TB drives and 1 1TB drive, MinIO limits the
per-drive capacity to 1TB.
MinIO requires using expansion notation {x...y}
to denote a sequential series of drives when creating the new , where
all nodes in the have an identical set of mounted drives. MinIO also
requires that the ordering of physical drives remain constant across
restarts, such that a given mount point always points to the same
formatted drive. MinIO therefore strongly recommends
using /etc/fstab
or a similar file-based mount
configuration to ensure that drive ordering cannot change after a
reboot. For example:
$ mkfs.xfs /dev/sdb -L DISK1
$ mkfs.xfs /dev/sdc -L DISK2
$ mkfs.xfs /dev/sdd -L DISK3
$ mkfs.xfs /dev/sde -L DISK4
$ nano /etc/fstab
# <file system> <mount point> <type> <options> <dump> <pass>
LABEL=DISK1 /mnt/disk1 xfs defaults,noatime 0 2
LABEL=DISK2 /mnt/disk2 xfs defaults,noatime 0 2
LABEL=DISK3 /mnt/disk3 xfs defaults,noatime 0 2
LABEL=DISK4 /mnt/disk4 xfs defaults,noatime 0 2
Note
Cloud environment instances which depend on mounted external storage
may encounter boot failure if one or more of the remote file mounts
return errors or failure. For example, an AWS ECS instances with mounted
persistent EBS volumes may fail to boot with the standard
/etc/fstab
configuration if one or more EBS volumes fail to
mount.
You can set the nofail
option to silence error reporting
at boot and allow the instance to boot with one or more mount
issues.
You should not use this option on systems which have locally attached disks, as silencing drive errors prevents both MinIO and the OS from responding to those errors in a normal fashion.
You can then specify the entire range of drives using the expansion
notation /mnt/disk{1...4}
. If you want to use a specific
subfolder on each drive, specify it as
/mnt/disk{1...4}/minio
.
MinIO does not support arbitrary migration of a drive with existing MinIO data to a new mount position, whether intentional or as the result of OS-level behavior.
The following requirements summarize the minio-hardware-checklist-storage
section of MinIO's
hardware recommendations:
- Use Local Storage
-
Direct-Attached Storage (DAS) has significant performance and consistency advantages over networked storage (
NAS (Network Attached Storage)
,SAN (Storage Area Network)
,NFS (Network File Storage)
). MinIO strongly recommends flash storage (NVMe, SSD) for primary or "hot" data. - Use XFS-Formatting for Drives
-
MinIO strongly recommends provisioning XFS formatted drives for storage. MinIO uses XFS as part of internal testing and validation suites, providing additional confidence in performance and behavior at all scales.
MinIO does not test nor recommend any other filesystem, such as EXT4, BTRFS, or ZFS.
- Use Consistent Type of Drive
-
MinIO does not distinguish drive types and does not benefit from mixed storage types. Each
pool
must use the same type (NVMe, SSD)For example, deploy a pool consisting of only NVMe drives. If you deploy some drives as SSD or HDD, MinIO treats those drives identically to the NVMe drives. This can result in performance issues, as some drives have differing or worse read/write characteristics and cannot respond at the same rate as the NVMe drives.
- Use Consistent Size of Drive
-
MinIO limits the size used per drive to the smallest drive in the deployment.
For example, deploy a pool consisting of the same number of NVMe drives with identical capacity of
7.68TiB
. If you deploy one drive with3.84TiB
, MinIO treats all drives in the pool as having that smaller capacity. - Configure Sequential Drive Mounting
-
MinIO uses Go expansion notation
{x...y}
to denote a sequential series of drives when creating the new , where all nodes in the have an identical set of mounted drives. Configure drive mounting paths as a sequential series to best support this notation. For example, mount your drives using a pattern of/mnt/drive-n
, wheren
starts at1
and increments by1
per drive. - Persist Drive Mounting and Mapping Across Reboots
-
Use
/etc/fstab
to ensure consistent drive-to-mount mapping across node reboots.Non-Linux Operating Systems should use the equivalent drive mount management tool.
MinIO strongly recommends restarting all MinIO Server processes in a deployment simultaneously. MinIO operations are atomic and strictly consistent. As such the restart procedure is non-disruptive to applications and ongoing operations.
Do not perform "rolling" (e.g. one node at a time) restarts.
Maintain pool order when decommissioning and then adding
If you decommission one pool in a multiple pool deployment, you cannot use the same node sequence for a new pool. For example, consider a deployment with the following pools:
https://minio-{1...4}.example.net/mnt/drive-{1...4}
https://minio-{5...8}.example.net/mnt/drive-{1...4}
https://minio-{9...12}.example.net/mnt/drive-{1...4}
If you decommission the minio-{5...8}
pool, you cannot
add a new pool with the same node numbering. You must add the new pool
after minio-{9...12}
:
https://minio-{1...4}.example.net/mnt/drive-{1...4}
https://minio-{9...12}.example.net/mnt/drive-{1...4}
https://minio-{13...16}.example.net/mnt/drive-{1...4}