Gyro Cloud Istanbul: adding and growing additional disks

1. What is an additional disk?

A separate disk attached to your server, stored in our Istanbul data centre. It adds storage without changing your plan. There are two classes: fast SSD and large, low-cost HDD — large storage (table below).

• Size: multiples of 10 GB; a disk can grow but cannot shrink.
• Limit: up to 4 additional disks per server (shared by both classes); SSD 500 GB, HDD 2 TB in total (open a ticket for more).
• Price (SSD): 0.09 € per GB-month (0.90 € a month for 10 GB instead of the list price of 0.99 €, 9% off; the TL amount is shown in the panel), metered hourly and deducted from your prepaid balance from the hour you add the disk until the hour you delete it; each disk is billed at least 1 hour.
• The disk is empty: partition, format and mount it inside the server (Section 3).

Two disk classes: SSD and HDD (large storage)

2. Adding, growing and deleting a disk in the panel

1. Open Storage > Additional disks on your server's Manage tab. Your remaining allowance and the current price are shown at the top.
2. Click Add, choose the Type — SSD (fast) or HDD — large storage — enter the size in GB (10, 20, 30 …) and confirm. Within seconds the disk appears in the server as a new empty disk (e.g. /dev/sdb).
3. To grow a disk click Resize on its row and enter a larger size. Growing works while the server is running.
4. To delete, click Delete and confirm. The disk is deleted with all its data; billing stops.

3. Preparing the new disk (Linux)

The short example below gets a disk working quickly. For a step-by-step walkthrough see Using an additional disk on your server; for after growing see expanding disk space.

lsblk                                   # new disk, e.g. sdb (10G)
mkfs.ext4 /dev/sdb
mkdir -p /data
mount /dev/sdb /data
echo "UUID=$(blkid -s UUID -o value /dev/sdb) /data ext4 defaults,nofail 0 2" >> /etc/fstab

After growing, extend the file system:

resize2fs /dev/sdb          # ext4 without partitions
# xfs: xfs_growfs /data
# with a partition: growpart /dev/sdb 1 && resize2fs /dev/sdb1

If the new size does not show up: echo 1 > /sys/class/block/sdb/device/rescan.

4. Limits and price example

The hourly amount is 1/672 of the monthly price; you never pay more than the monthly amount in a month. A grown disk is billed at its new size from the next hour. Each disk is its own line ("Ek disk 1 (100 GB)") in the spending view.

5. CLI, API and Terraform

gyro server disk list 12345
gyro server disk add 12345 --size-gb 50 --yes
gyro server disk add 12345 --size-gb 500 --class hdd --yes   # large storage
gyro server disk resize 12345 2001 --size-gb 100 --yes
gyro server disk remove 12345 2001 --yes

curl -X POST -H "Authorization: Bearer $GYRO_TOKEN" -H "Content-Type: application/json" \
     -d '{"size_gb":50}' https://www.gyrohosting.com/api/v1/client/cloud/servers/12345/disks

resource "gyro_server_disk" "data" {
  server_id = gyro_server.web.id
  size_gb   = 100
}

6. Frequently asked questions