Blog

What single OS operation would result in the state of the SSD changing to the following:   FTL     1:  6   2: 10   5:  2   7:  1         8: 20   9:  4  12: 16  13:  9        15: 21  17: 17  18:  5  29: 13        19: 11  20: 14  21: 15  23:  3        24: 18  25:  0  27:  8  28:  7  Block 0          1          2          Page  0000000000 1111111111 2222222222       0123456789 0123456789 0123456789 State vvvvvvvvvv vvvvvvvvvv vvEEEEEEEE Data  Ih7tj3UYbK 34quFTEPXg Hg         Live  ++++++++++ ++ ++++++  ++         

One danger of hard links is dangling references to files.

A nurse is educating a client about the role of parathyroid hormone (PTH) in bone remodeling. Which statement by the client indicates an understanding of the relationship between PTH, osteoclasts, and osteoblasts?

Assuming we start with no state in memory, and have a LFS with that looks like the following: how many disk I/Os do we need to perform to read the contents of the directory “/”?   block 0: Checkpoint region: imap[0..2] -> 3block 1: [(“.” 0), (“..” 0)] block 2: [size=1,ptr=1,type=d] block 3: [imap: 0->2]

Which of the P6 RAID modes could increase write performance over a non-RAID filesystem by using concurrency?

One advantage of increasing a disk’s rotational speed is reducing the seek time of I/O operations.

Calculate the dosage.  Round to the nearest whole number An IV of 500 mL D5W with 200 mg of minocycline is to infuse in 6 hour. Drop factor 15 gtt/min. _____ gtt/mL

In the RAID1v mode of the P6 filesystem, if copies of a data block are different, then the data block of the disk with the highest index should be returned.

One way to solve the load imbalance problem in MQMS is work stealing.

You are given a stream of writes that appear on a disk that runs a Log Structured File System. However some of the entries from the segment are now missing and you are asked to investigate what those missing entries might be.    Assumptions: You can also assume that a single inode takes up an entire block (for simplicity). The LFS inode map is called the “imap” below and of course is also updated as needed. The inodes in this filesystem contain:    (a) size field which counts the number of blocks present in the file/directory    (b) ptr field which contains a list of pointers to data blocks    (c) type field which is ‘d’ for directories and ‘f’ for regular files