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Closed 4 years ago.
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I am launching an EC2 instance with Shared tenancy. Can I get to know what are the other processes run on the same host by other users?
If the size of my /tmp reports 100% usage whereas the current contents of the disk under my login is only 50%, does that mean the disk usage (df) is taking size details from other users' file size as well, present under the same folder?
Your Amazon EC2 instance is a virtual machine. It has zero visibility of anything else running on the same host computer.
Individual 'virtual CPUs' are not shared
Memory is not shared
Network is logically separated
Disk is virtual, but logically separated
The disk is viewable only from that specific EC2 instance
Bottom line: Nothing that anybody else does on the same host will not impact your virtual machine. Whatever you are experiencing with df is purely related to your own instance and is related to the operating system you are using (Linux). It is unrelated to AWS/EC2.
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Closed 2 years ago.
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I was running a RabbitMQ server on my Linux machine, when my disk became full I couldn't make any more connection requests to my rabbitMQ server, when I cleaned up the disk, the issue got resolved.
Yes, that is possible.
At lot of daemon do access logging. If the disk is full it might happen that logging fails and no more network requests are possible.
Side note:
If a daemon filled the disk with a log file, it might not be enough to delete the log file. You might need to restart/reload the daemon as the file isn't actually deleted while it is opened.
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Closed 3 years ago.
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I am using 2 operation system via Grub, Linux for work and Windows for games.
My question is, if I get some virus on Windows, can it some how damage my files that are stored on a disk with Linux? Or get access for files on Linux disk? Can a virtual disk be exposed to some another vulnerabilities from another virtual disk with infected Windows?
Sure it can. The virus can and will do what it is supposed to do. "Virus" is a very broad term for this question. Can you give a little more details or context?
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Closed 6 years ago.
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How to create a partition on an external hard disc and mount it in linux when all the partitions and the partition table are erased?
In the usual way. Just connect the external disk drive to the Linux machine and verify it shows up in the output of lsblk. Then you can format it via fdisk (or any other partitioning tool), and then create a filesystem on it via mkfs. Eventually, you mount it and the disk is ready to use.
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Closed 7 years ago.
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Suppose I have two identical virtual machines in Azure, one is constantly running cpu at 100% and the other at 50%. Will the cost for them be the same or will the other be twice the price? This excluding bandwidth and storage.
No, CPU usage doesn't affect the cost you'll pay for the virtual machines. It will be the same for both of them.
Note that if you are using the Free or Shared tiers of Azure Web Sites you have a CPU usage limit.
Please, refer to this links:
Pricing - Web Sites
Pricing - Cloud Services
Pricing - Virtual Machines
NO. You pay for the timespan your VM is running.
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Closed 8 years ago.
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When i try to offline a disk in a zfs raidz pool (the raidz pool is not mirrored), zfs says that the disk cannot be taken offline because it has no valid mirror.
Isn't one of the properties of raidz that it has a redundant disk (or even 2 disks in raidz2)...?
Could you give a bit more about your configuration please? What are the commands you are using? If I'm understanding your question that should work.
Note that:
You cannot take a pool offline to the point where it becomes faulted. For example, you cannot take offline two devices out of a RAID-Z configuration, nor can you take offline a top-level virtual device.
Managing Devices in ZFS Storage Pools.
ZFS Best Practices Guide.